3-2-1 Contact

David visits Aerovironment Inc. where they are building a full scale Pterodactyl model that has been designed based on the few clues scientists have about the real animal. Then David visits Burt Rutan, designer of the Voyager, the first plane to travel around the world without stopping. There David and Burt discuss the custom airplane designs and experimants Burt has made. This information is supplied by Chuck N. Thank you, Chuck.

Jan Carter, Entymologist at the Cincinatti Zoo and Botanical Garden teaches us about the life cycles of the butterfly. David speaks with Glen Wiggins, curator at the Royal Ontario Museum in Toronto Canada, about Dragonflies and their wings and Moths and their Proboscis. Then there's a recycled segment from season 1, Episode 22, where Marc visits a beekeeper. Then back to David and Glen Wiggins about Beetles. This show's information is supplied by Chuck N. Thank you, Chuck.

Built largely on material recycled from Season 1, this episode includes insight on how pigeons and bats negotiate their world. Bats rely on sonar, but as for pigeons and how they navigate, that's a different story.

Models are shown in museums and in the medical world.

Models observed in this episode include those of Canadian ice shields, fast bicycles, and modern airplanes.

There is a price ecosystems pay when big animals are confined. This program shows the elephant, the rhinoceros and the tapir groping with spatial problems.

This show witnesses the births of elephant seals and wildebeests. Also seen are young black bears and kangaroos.

Hard to believe mice and rats are mammals, as are bats. But this program shows why rodents are classified this way.

There is a branch of architectural science called ergonomics, which states how things are built to fit certain people. David Quinn sees if he can improve the ergonomics of a kitchen.

The frame is vitally important to anything architectural. We see how animals make their perfectly-designed shelters, how the Japanese can join two boards without glue or nails, and find the traditional Kenya home.

Can you tell a pattern when you see it? A combination of new and recycled material shows all sorts of patterns in nature.

This show observes owls in the wild and the ecosystems in a salt marsh.

Archaeologists are seen trying to demystify the Mayans, Egyptian mummies, and a prehistoric cave where flint was mined.

David and Kaori get a glimpse of architects designing buildings that can resist the force of some natural disasters.

Impeding Japanese throughout is the erosion of Mmighty .t Fuji. David sees what steps are being guarded to help the Japanese society in spite of it. Included is a building where rainstorms and landslides are simulated.

An online stat page says this episode ""explores the ways in which food is processed by the body for energy and building material."" Actually, this show has remains to be seen. An archaeologist studies what ancestral humans ate by digging up those unmentionable remnants. The Bloodhound Gang cracks ""The Case of the Haunted House.""

The bulk of this show is set in the San Diego Wild Animal Park, where certain meals are arranged for the animals. The Bloodhound Gang begins ""The Case of the Haunted House.""

David's dental visit anchors a discussion on teethkinds of teeth and their uses.

Friction is emphasized in demonstrations with snakes, TGV trains, and ice-gliding boats.

David rides a bicycle with a skeleton at a Paris science museum. Robin visits veterinary radiologists in action. At Cal State Long Beach, Diego witnesses track students' video analyses.

Along with some previously-broadcast bits from earlier in the week, this program includes a visit to Penguin Encounter at Sea World in San Diego. ""The Wreck"" investigation concludes with nothing settled.

There are a lot of things in the seas, such as salt and kelp. This program talks of humans surviving on sea voyages, discusses kelp in depth, and continues that probe into ""The Wreck.""

Todd gets to see, on the shore and in a lab, the motion of waves in the ocean. There are no still waters out there. The runner for this week is ""The Wreck,"" an underwater search taking place in the Caribbean.

Debra sees how quickly USA Today uses satellites to send information for printing in the next day's paper. David does a two-minute lecture on television signals. The Bloodhound Gang traces the Human Whale.

Debra sees an anthropologist understanding a parrot's simple form of English. Chantal enters a hospital room that responds to a person's voice to open doors, etc. FILM INSERTS: Bird words, ways to say hello, animal sounds, uses of the X symbol. THE BLOODHOUND GANG: ""The Case of the Human Whale, Part One."" An apparent hit-and-run victim employs the gang to find the guy who ruined his tennis career.

Schoolchildren design egg containers that prevent the egg from breaking when dropped. Miguel sees a plane that is lighter than its pilot go for a speed record. The Bloodhound Gang makes fast work in battling ""The Case of the Funny Money.""

Heat It, Beat It is the music video that sums up this episode. We see the bending of glass and (in a scene recycled from ""Tropics"" week) the making of a Malaysian dagger. The Bloodhound Gang cracks ""The Case of the Dark Night.""

Robin, Miguel, and Kathy observe different facets of the Statue of Liberty's restoration.

Much of this show is set in a modern dairy. Cows give milk, and that milk is turned into other foods. The Bloodhound Gang investigates a well-disguised pickpocket in Part One of ""The Case of Mr. Quickfingers."" (Concludes in next episode.)

Mass population puts heavy demands on growing and producing plans. This program looks at some advances in agriculture.

Diego and Robin start the day on a ship off the California coast, observing the individual patterns of a lighthouse's beam. They find out how lenses concentrate the rays of light emanating from a lighthouse or a buoy. Robin illustrates the convex lens at the Exploratorium. Also at the Exploratorium, Miguel bounces light with a curved mirror. He goes to the University of Arizona to see the grinding of a glass lens for the telescope at nearby Kitt Peak.MUSIC VIDEO: Light energy from the sun.

Darlene Librero dissects a cow's eye before a class of intermediate-schoolers. Later we get to hear about Librero's scientific background. The Bloodhound Gang unmasks ""The Case of the Missing Memory.""

Light is observed through lenses such a telescope and the eye. The Bloodhound Gang is confronted with ""The Case of the Missing Memory.""

Miguel learns firsthand how elephants and monkeys can help humans in their tasks. Paco gives a little monologue on domestication.

People use the word ""tin"" without really understanding it. Miguel goes to various sites in Malaysia see tin being extracted and used.

During his check-up, Paco learns that the cells of all living things generate small electric charges. Miguel learns the ins and outs of a myoelectric arm.

Not all ways of generating electricity are ""conventional."" Kathy goes to a dairy farm that produces its electricity from cow manure. The Bloodhound Gang is confounded with ""The Case of Mr. Quickfingers."" (Concludes in next episode.)

Coming out of a thunderstorm, the kids huddle in the basement to talk about lightning. In the field, Miguel finds out what makes neon lights work. The Bloodhound Gang confronts ""The Case of the Dark Night."" (Concludes in next episode.)

Robin and Kathy have several plants in their basement as part of a ""Flora and Fauna"" shop. It attracts some interest, until Paco shows up with some unusual fauna. The Bloodhound Gang learns more about Sally Starfire in Part Two of ""The Case of the Haunted House.""

Among the highlights of this episode: Mapping techniques are put to work at Grant's Pass, Oregon and in the orienteering expedition in Peekskill, New York.

Paco and the others stage a race between a snail, a turtle, a worm, and a millipede. Robin sees a biologist studying animal locomotion. Astronaut Charlie Bolden shows Miguel a computerized shuttle simulator. Kathy gets an elementary physics lesson riding a free-fall ride at Six Flags Over Texas. In the last installment of Paco's Bureau of Standards, Paco measures the speed of speech with fast-talker John Moschitta.Film inserts: The speeds of various animals, people, and other devices; gestation periods of selected animals.THE BLOODHOUND GANG: ""The Case of the Human Whale, Part Three."" Vikki determines that the Human Whale always centers around one parking garage. It's the key to catching both the Human Whale and Flash Jordan.

Miguel helps Paco weigh his dog. Kathy gets a pointer on how to pan for gold. In ""The Bloodhound Gang,"" a mann claiming to be an ex-tennis player hires the Gang to search for a man with a shaved head.

Paco enlists Miguel and the others to determine the length of string wound into a worn baseball. Mount Rushmore heads the set of field reports. The Bloodhound Gang is confronted with ""The Case of the Funny Money."" (Concludes in next episode.)

Main Concept: Astronauts get special training to function in the weightlessness of space. Preview: Astronaut Sally Ride explains to Robin the function of the remote manipulator arm and the use of a special helium balloon to simulate a satellite in space. As the first female American in space, she also describes how it felt to live in a weighless condition. SPACE CAMP, DAY FOUR: Paco goes on a simulated shuttle mission. BIOGRAPHY: Black astronaut Charles F. Bolden Jr.

Projected into this episode: Miguel launches a model rocket in Allentown. The Bloodhound Gang begins to pick up clues in ""The Case of the Missing Memory."" (Concludes in next episode.)

Broadway Video provided production facilities for 3-2-1 Contact for six seasons. In this episode, editors at Broadway Video show their work in assembling a film (later seen in its entirety) about dancers. The Bloodhound Gang cracks ""The Case of the Bottled Boat.""

Among the field visits in this program is an automobile assembly line. The Bloodhound Gang gets involved in ""The Case of the Bottled Boat.""

Jackie gets an up-close look at the Teflon roof of the Hubert H. Humphrey Metrodome. The Bloodhound Gang is called to investigate ""The Case of the Veiled Thief.""

Miguel discovers a leak in the water pipes and tries valiantly to fix it. Kathy discusses Lake Mead and Hoover Dam, which supply water and electricity for Las Vegas. Robin and Jackie examine the Grand Canyon from two different angles.Film insert: Tracing the New York City water system.ANIMATION: The creation of the Grand Canyon.THE BLOODHOUND GANG: ""The Case of the Computer Caper, Part Three."" Vikki discovers that the woman who poured water in the trash can, is left-handed. Looking closer at the pictures, Ricardo realizes that the money – wrapped in plastic – froze to the bottom of the trash barrel. Back at the park, the gang is surprised to hear from a hot dog vendor that the ""lady"" came back for the trash can. In truth, the culprit is a man. (Concludes in next episode.)

A dry tour of the solar system shows no substantial water on the other planets. Back on Earth, water contains just about all life.Miguel visits the Okefenokee Swamp, hoping to see an alligator.Robin shows Paco how to start an avocado plant. Paco then tries to help a cactus by giving it excess water. On location, Paco learns how animals and cacti survive in the desert with little water.BIOGRAPHY: Eloy Rodríguez visits the desert to study how its natural resources can help man and industry.THE BLOODHOUND GANG: ""The Case of the Computer Caper, Part One."" (Recycled from Episode 82.) When the Twins Research Foundation finds several computer files stolen, the gang is called to help follow the directions in the ransom note. Skip must drop the ransom money in a trash barrel at the park.

Robin has her hands full trying to develop pictures in the makeshift darkroom set up in the basement. In the field, Robin gets a first-hand look on how police use fingerprints as criminal evidence. The Bloodhound Gang cracks ""The Case of X Marks the Spot.""

Miguel and Robin attach a speedometer on a bicycle so they and Paco can see how fast Paco can really ride his bike. Jackie meets with MIT engineers who built a streamlined bicycle, the longest in the wirld. ANIMATION: Laminar flow. At Miguel's house, Kathy tells Robin about the odometer on a bicycle. They decide one of them rides 2,000 miles a year on a bicycle. FILM INSERT: Streamlining isn't the only thing that lowers air resistance in high-speed travel. Robin and Kathy find the hole in Kathy's flat tire by putting the tire in a tub full of water. Miguel talks to Diane Green, a champion windsurfer, about sailboards. Green builds a sailboard herself and gets Miguel on another sailboard (temporarily). FILM INSERT: The streamlined shape of salmon and other fish, beavers, penguins, and dolphins. Robin and Kathy patch up the tire and test it in the tub. THE BLOODHOUND GANG: ""The Case of X Marks the Spot, Part One."" Vikki is entered in a village's ten-mile race. One of the runners, tho

Miguel and Paco start the week in the back of a pick-up truck, riding through San Diego Wild Animal Park. They see the prehensile tongue of a giraffe up close. A worker explains how giraffes evolved to its long-necked self. Kathy and Robin go to Magi, a 3-d computer animation studio. Christine Chang, a computer scientist, shows how masic shapes turn into complicated animal shapes. Back at the Wild Animal Park, Miguel and Paco see how an elephant's trunk can pick up things. FILM INSERT: Basic shapes are all over the world. ANIMATED MUSIC VIDEO: The Way It Was shows how the continents were together millions of years ago. BIOGRAPHY: Botanist Elma González reflects on her life and her inspiration for studying the cells of plants. FILM INSERT: Basic shapes are all over the universe. Back at the Wild Animal Park, Miguel and Paco emcounter a Bactrian camel. An expert explains that animal families are determined by the similarities of different animals. THE BLOODHOUND GANG: ""The Case of the Ma

Paco surprises everyone with a gecko as his present for Robin's birthday. We meet a neurologist who studies the sense of touch in Brooklyn. In ""The Bloodhound Gang,"" Vikki attends a séance as she investigates ""The Case of the Girl from Outer Space."" (Concludes in next episode.)

Main Concept: In order for us to see, the eye must convert light energy to electrical energy, which is interpreted by the brain as an image. Robin learns that sight is the dominant sense in some animals. She visits the U. S. Coast Guard in San Francisco and finds how pigeons, with their acute eyesight and color vision, are used to spot survivors at sea. Miguel visits the Computer Graphics Lab in New York City and learns how forms and colors of video images are manipulated electronically to produce pictures. BLOODHOUND GANG: The Case of the Frozen Blob, Part Two.

Paco sets up a school report on his walk on the beach. He teams up with a chimpanzee and a biologist who studies animal locomotion. At the university, the biologist shows Paco part of the skeleton of Lucy, the great evolutionary find of 1974. Miguel goes to a dinosaur burial ground in northern Montana.THE BLOODHOUND GANG: ""The Case of the Computer Caper, Part Four."" With the barest of clues, a restaurant's souvenir pen, the gang traces the man who stole the computer files.

While Miguel, Robin, and Kathy go off on a picnic, Paco is left to examine Miguel's ants. He then has to scramble for the ants when they get loose. Immediately, Miguel senses that his ants have escaped.A saxophonist imitates the call of a wolf in attempt to understand wolves' ""music."" Miguel examines spiders' webs in the Okefenokee Swamp. Kathy witnesses how the sounds of dolphins are reproduced on computers to help learn about dolphin behavior. Robin watches a monkey being trained to help a quadriplegic.Video insert: ""The Amazing True Story of Tex and George"" tells of a whooping crane who has been attracted to a biologist.THE BLOODHOUND GANG: ""The Case of the Computer Caper, Part Two."" After a cold snap the night before, Vikki and Ricardo stake out the trash barrel in question. A strange lady pours water into the barrel a couple of minutes before Skip arrives with the money. Once the trash is dumped into a garbage truck, the order goes out: ""Tail it.""

Paco is trying to find out what DNA is. Not everyone has the complete answer until somebody calls the wrong number repeatedly. Robin is fortunate to talk with one of the biologists who discovered the basics of DNA.Jackie learns about the breeding of miniature horses. Miguel finds a botanist observing the wildflowers and insects populating a vacant New York City lot.FILM INSERT: The jacquard loom.ANIMATION: Life evolving through DNA.THE BLOODHOUND GANG: ""The Case of The Locked Safe,"" a one-shot surprise that trains the gang to work under pressure. Can they find the new combination to the lock?

Miguel has entered himself and Robin in a boomerang-throwing competition. But neither knows how to throw a boomerang properly. They get a demonstration on boomerang flight from a professional. In California, Kathy flies an ultralight with a test pilot.Film inserts: indoor airplane flying at Columbia University leads a boy to building a model airplane; the need for great amounts of energy for birds and airplanes to fly.ANIMATION: The four forces involved in flying.THE BLOODHOUND GANG: ""The Case of the Bottled Boat, Part Two."" Armed with a ticket to the Maritime Museum, the gang talks to a model shipbulider who tells all he knows about the stranger with the bottled boat. He's a regular customer, buying ships every week, always with a specially-marked pennant on the mast. (Concludes in next episode.)

Miguel invites Kathy and Robin to Lincoln Park Airport, where he is taking flying lessons. After a brief discussion of the four forces, Miguel acquaints himself with the plane's controls. Kathy discovers a wounded raptor in the Minnesota woods, prompting a visit from a graduate student intent on helping the raptor. Film insert: Different wings for different things. A musical number, Trying To Fly, adapted from The Bee Gees' Stayin' Alive, becomes the backbone of this theme week (it reappears in Flight: Thrust. Another musical send-up, Big Birds Don't Fly, shows up here (and again in Flight: Acceleration). THE BLOODHOUND GANG: ""The Case of The Veiled Thief, Part One."" Someone has broken into a beehive, where a precious coin collection had been kept. (Concludes in next episode.)

Kathy is downstairs, exercising while waiting for Miguel to return. Miguel is with Judy Clarke, who discusses the design of athletic shoes. She leads Miguel to two other researchers, ready to do measurements on Miguel's feet. Miguel weighs 135 pounds, and the impact each foot endures while he runs is twice that weight. In between the experiments and observations, Judy tells Miguel what type of athletic shoe would be best for running. Back at the basement, Kathy sprains her knee. Robin sees Sammy Duvall, a world-champion water skier. He talks about the stress a water skier meets during a jump. They meet Dr. Michael Fulton, who shows Robin the forces a knee faces when walking, jogging, and jumping. Fulton explains what kind of injury Sammy had in 1979 and how the doctors countered the injury. Sammy gives Robin a water-skiing lesson. Paco walks to the basement wearing street-hockey pads, all of which impress Kathy. Robin is at a softball game, quickly learning that she must wear a

Robin helps Kathy and Miguel to coordinate their schedule of errands, splitting the duties among themselves to get everything done faster.Robin finds out from a pair of jockeys the basics of training thoroughbred horses (it's all about speed). Kathy gets a run-in with speed skaters.FILM INSERT: Ride-and-tie races.THE BLOODHOUND GANG: ""The Case of X Marks the Spot, Part Two."" Only three suspects could have taken the treasure map, but all three ran the race. (Concludes in next episode.)

Miguel, Robin, and Kathy have a computer game in waiting for a contest. Can they get anything done by splitting the responsibilities? In Denver, Miguel puts a hospital's Flight for Life rescue squad to the test. Lorna Coppinger and son Tim show Robin how their sheep dog interacts so well with sheep. The New York City documentary ends with a reminder on togetherness. FILM INSERT: Loner animals. THE BLOODHOUND GANG: ""The Case of the Girl from Outer Space, Part Three."" The gang reassembles to determine just how Madame Saturn is swindling the séance attendees.

Miguel, Robin, and Kathy help epidemological detectives in their investigation on a food poisoning case. Jackie searches with schoolkids for jumping frogs. In ""The Bloodhound Gang,"" Vikki attends a séance staged by a fortune-teller.

A computer program introduces the names of the new cast. Robin surprises Miguel and Kathy with a used car, but all three are surprised when the carburetor is faulty. During their ride, the tailpipe falls off.In Inglewood, California, Kathy participates at a firefighter's school.Lauren Taylor begins the New York City Marathon in the first of a five-part film story.ANIMATIONS: How birds breathe; how fish breathe.THE BLOODHOUND GANG: ""The Case of the Frozen Blob, Part One."" Vikki suspects that a frozen ice sculpture has been stolen. But is it too late to save ""the blob""? (Concludes in next episode.)

REHASHED FROM PREVIOUS FOUR EPISODES: Lisa rides a hot-air balloon. FILM INSERT: The elephant struggles for survival in Africa. ADDITIONAL: The black hole.

Trini pilots around New York City in the Goodyear blimp. Lisa gets to ride a hot-air balloon. The Bloodhound Gang gets an eyesight-full in Part Two of ""The Case of the Cackling Ghost."" (Concludes in next episode.)

The workshop welcomes a guest to discuss the human psyche of crowding.Film inserts: Building a skyscraper; the Gui people of Africa do a little minor socializing; New York City life.THE BLOODHOUND GANG: ""The Case of the One-Ton Jewel,"" a one-shot mystery in which an auction is apparently selling a fragment of a white dwarf.

At an aquarium, Lisa and Trini learn about volume. Marc and Lisa head out to see a supertanker. Trini stakes her case about oil spills. This includes an extension of Trini's visit to the salt marsh in Episode 57. As a final gesture, Marc and Lisa remind Trini just how many common items come from oil.Film insert: how a school bus compares to a car in transporting kids.ANIMATION: Cubes illustrate volume; the vast volume of a supertanker.THE BLOODHOUND GANG: ""The Case of the 264-Pound Burglar, Part Two."" (Recycled from Episode 7) Vikki reveals that the weight card reading 264 pounds, was designed to throw them off the scent. They discover the real culprits, both of whom faked the weight card in preparation for the heist.

Everyone is perplexed when they find bugs living on just about everything. Trini examines a salt marsh. (Continues in Episode 59.) A guest biologist discusses water and food chains.Film insert: elephants' needs for survival.ANIMATION: Ants.THE BLOODHOUND GANG: ""The Case of the Dead Man's Pigeon,"" a one-shot adventure in which a lawyer is trying to swindle a niece from her inheritance.

Lisa rides a hot-air balloon and gets tips from a glassblower on making goblets. A film insert discusses bubbles and how they are used. The Bloodhound Gang is kidnapped in Part One of ""The Case of the Thing in the Trunk."" (Concludes in next episode.)

Clothes are humans' number-one source of protecting the skin. Trini finds out what clothing works best when climbing a mountain. The Bloodhound Gang is confronted with ""The Case of the Missing Bloodhound.""

Marc, Lisa, and Trini become helter-skelter at the beginning, but they calm down and devise plans. In the process, Lisa finds a pattern for her quilt. On location, Lisa sees a sewage treatment plant in Chicago. The Bloodhound Gang gets to the bottom of ""The Case of the Secret Message.""

A student of neuropharmacology visits the workshop to discuss the order of the human body and all its systems. Marc observes how a pacemaker works. Trini seeks how a doctor could restore a boy's sight by replacing damaged corneas. The Bloodhound Gang puts out an APB to crack ""The Case of Mr. Q.""

RECYCLED FROM THE PREVIOUS FOUR EPISODES: Marc sees a sailing ship chart its return course and observes how a blind boy finds his way around; astronauts training for navigating the space shuttle.

For the bulk of the show, a guest at the workshop is Willis Brown, a transcontinental pilot who discusses air travel. Trini examines homing pigeons. Marc goes on a sailing adventure.THE BLOODHOUND GANG: ""The Case of Princess Tomorrow, Part Three."" (Repeat of a mystery installment from Noisy/Quiet: Music. Recycled for the only time in the series.)

Lisa and Trini enter an Eames Room to play tricks on Marc. Marc gets an up-close look at things through a scanning electron microscope. The Bloodhound Gang is called on to observe an apparent prognosticator in Part One of ""The Case of Princess Tomorrow.""

Everyone celebrates Trini's birthday with a piñata. Marc visits a visually-impaired boy navigating around his school and neighborhood. Trini discovers a boy whose vision was improved with a cornea transplant. FILM INSERT: How A Television Works song (filmed at Connecticut Public Television with some stars of Sesame Street. ANIMATION: How the eye sees. THE BLOODHOUND GANG: ""The Case of the Thing in the Trunk, Part Two."" (Recycled from the episode called Fast/Slow: Speed and Racing). Using a pinhole camera effect with a piece of cardboard picking up light from a hole in the side of the van, the gang learns where the mummy is being stowed. They radio that information to the police after trapping the henchman.

Marc wants to set up a model solar system. To simulate the sun, he and the others get the largest light bulb they can buy. Only after they blow a fuse do they learn (from a guest) that what they really need is a dimmer. Among the show's adventures: Trini goes to Kitt Peak to see a telescope that looks at the sun. ""The Bloodhound Gang"" must decode a message to start ""The Case of the Missing Bloodhound."" (Concludes in next episode.)

Lisa is bitter over her cold. As Marc and Trini try to warm her spirits, Lisa thinks back to her visits with the motorcyclist and the hot-air balloons. The Bloodhound Gang must work quickly to crack ""The Case of The One-Ton Jewel.""

The desert and polar regions demonstrate how plants and animals react to extreme heat or cold. The Bloodhound Gang unlocks ""The Case of the Secret Message.""

RECYCLED FROM THE PREVIOUS FOUR EPISODES: Gasohol, Baker's Akers, baking bread. Another sequence believed to be in this episode is a race of fuel efficiency between a school bus and a car (which is seen in the ehow called Big/Small: Volume & Efficiency.

Lisa, Marc, and Trini have been invited to a canoe trek in Maine. They have difficulty at first trying to decide what food to bring. Marc learns about the growth of corn and pigs at the Bakers Akers farm. (This film is more complete than the footage found in Episode 11.) Lisa makes a loaf of bread in the shadows of a bread factory. Marc watches how a pizza is made. (More about the proprietor in Episode 60.) Film insert: Time-lapse of fruit rotting. (Wastes food, but makes great stock film.)THE BLOODHOUND GANG: ""The Case of Mr. Q, Part Two."" The gang keeps an all-out watch on anybody or anything slipping out of the laboratories. They follow a pigeon, who has been let out a window, and trace it to apprehend the mysterious Mr. Q.

Trini decides to bring a pet to the workshop, but she didn't count on a friend bringing a wolf. At the Bronx Zoo, Lisa goes on the rounds with a young veterinarian feeding baby animals. FILM INSERT: Mzima Spring in Kenya houses a massive food chain, and it all centers around the hippopotamus. ANIMATION: How much would a shrew eat if he was the size of a person? THE BLOODHOUND GANG: ""The Case of the Educated Pig,"" a one-shot mystery surrounding a pig that can supposedly answer multiple-choice questions.

Trini returns from the desert. She gets in her first segment of the week, visiting the University of Tennessee, where an ape named Chantek learns sign language. Trini also checks out a giant telescope in Puerto Rico intent on picking up sounds from the galaxy. Different Mummenschanz performers theorize the way alien beings might communicate. In the workshop, everyone listens to the soundtrack of ""Earth Sounds,"" sent aboard Voyager I in 1977.ANIMATION: Robots from outer space observe what they think are human beings.THE BLOODHOUND GANG: ""The Case of the Dead Man's Pigeon,"" a one-shot adventure in which a lawyer is trying to swindle a niece from her inheritance.

Trini is still lost in the desert, despite several attempts to get messages across. Marc illustrates his expertise on bugs. He visits a researcher determining how bees communicate. More Mummenschanz performers appear.Recycled from Episode 3: Lisa gets a lesson in dolphin research at the University of Hawaii.ANIMATION: Moths use pheromones; fireflies.THE BLOODHOUND GANG: ""The Case of the Cackling Ghost, Part Two."" Townsend, Mrs. Fairbanks's gardener, is surprised that his bottle of pheromones, used to trap moths in the area, is empty. It is a key to determining what the ghost is. (Concludes in next episode.)

REHASHED FROM THE PREVIOUS FOUR EPISODES: Lisa checks out a professional motorcycle racer (filmed Oct. 1979) and witnesses the wicked tides at the Bay of Fundy. A make-up artist transforms Marc into an old man, explaining human aging along the way. ANIMATION: Speed of various animals.Fresh items for end of week: Karate is more than fights – it can be graceful dance called kata.ANIMATION: One billion years of Earth change is compressed into 1¾ minutes.

Recycled from Episode 12: Lisa arrives at a hospital to see treatment for a premature baby.A make-up artist transforms Marc into an old man, explaining human aging along the way. In a separate film sequence, members of a family remember the final stage of their grandfather's life.ANIMATIONS: Newborn baby to one-year-old; average life spans of various species.THE BLOODHOUND GANG: ""The Case of the Thing in the Trunk, Part One."" The gang discovers a stolen mummy in the trunk of a car – and are locked themselves in the back of a van. (Concludes in next episode.)

Trini and Lisa stage a surprise birthday party for Marc. It revolves around a tape recording which Marc must play at various speeds. Features Harry Blackstone's complex magic acts (with one trick slowed down).ANIMATION: How cartoons are made.THE BLOODHOUND GANG: ""The Case of the Flying Clock, Part One."" (Recycled from Forces: Buoyancy and Gravity) A clock collector files an insurance claim that a precious clock has been stolen. (Concludes in next episode.)

Lisa sees a volcano that is almost ready to erupt. Marc demonstrates a model volcano. Trini joins a group of young archaeologists uncovering fossils along the Illinois River.ANIMATIONS: The moving rocks of Earth; one billion years of Earth change is compressed into 1¾ minutes.THE BLOODHOUND GANG: ""The Case of the Missing Bloodhound, Part Two."" Mr. Bloodhound has left behind another secret message for the gang, which leads them directly to the kidnappers.

Lisa arrives at a hospital to see treatment for a premature baby. Trini and others at Staten Island discuss adolescent changes. ANIMATIONS: Einstein images; Human from conception to birth through growth; average life spans of various species; What if kids grew at the same rate all the time?THE BLOODHOUND GANG: ""The Case of the Secret Message, Part Two."" Remembering the coded message, now surrendered to Mr. Big, the Gang heads out to Tennessee Bay to help thwart a diamond-smuggling operation.

REHASHED FROM THE PREVIOUS FOUR EPISODES: Roller coaster design; stuntman; orbiting satellites. Also: what forces propel a bicycle.

Hurricane Rufus is now abutting the workshop. Trini prepares herself with a lifeboat. She proves to Marc and Lisa that boats will float because of their shape. Trini gets a lesson in scuba diving and why some things sink or float. She also rides the Goodyear Blimp. Marc goes on his own underwater adventure at the Miami Seaquarium.ANIMATION: ""The Sinking Lesson"" on how submarines can sink and float.THE BLOODHOUND GANG: ""The Case of the Flying Clock, Part One."" A clock collector files an insurance claim that a precious clock has been stolen. (Concludes in next episode.)

Trini becomes concerned when and where a hurricane is projected to strike. Marc visits Six Flags Great America to learn the mechanics and design of roller-coasters and talks to Frisbee-throwing champion John Kirkland. He also checks out a stuntman-in-training. Lisa rides in a glider.Film insert: animal force in motion.THE BLOODHOUND GANG: ""The Case of the 264-Pound Burglar, Part One."" An old lady's life savings is stolen from her attic. Did the culprit weigh 264 pounds, as a found weight card suggests? (Concludes in next episode.)

Dizzy Gillespie shows off his jazz talents. Trini checks out the behind-the-scenes work at a Kiss concert. The Bloodhound Gang cracks the Case of Princess Tomorrow.

Same 60-second tease as in first episode precedes an invasion of noises into Marc's world. Knowing that ""noise annoys,"" Marc illustrates (with a decibel reader) that loud noises can damage people's hearing. Lisa shows Trini that a cactus needle can be used as a record needle. When Marc returns, he gives a private message that Trini picks up on a parabolic microphone. Lisa visits the (White Plains) New York School for the Deaf.ANIMATION: Sound vibrations.THE BLOODHOUND GANG: ""The Case of Princess Tomorrow, Part One."" A professor introduces to a group of gamblers and The Bloodhound Gang a woman who seemingly predicts the future. She is hypnotized to write down the results of a future horse race, which the Professor seals and has mailed to The Bloodhound Gang the next day.