The Immortal

While strolling along on the beach, discussing their future, Rafe, Sara and Goodwin discover the teenaged Kiyomi lying on the sand. She has no memory of anything that happened to her since her disappearance 3 centuries ago. Meanwhile, Mallos and a resurrected Vashista are lurking nearby. Apparently Mallos' Millennia Plan require that he marry the Immortal's daughter. Vashista raised the girl in the Beyond, and still has motherly feelings toward her. She tries to come to an arrangement with Rafe: he kills Mallos and she gets Kiyomi. Kiyomi is eventually lured to the abandoned building where the wedding is to take place, and Rafe is captured. Sara and Goodwin sneak in, and Vashista ultimately turns over a wedding-gowned dummy to Mallos and frees Raphael. In a final battle, Rafe sends Mallos back to Hell and recovers his daughter. However, as the episode ends, Vashista shows up and warns that the arrangement is only temporary.

While travelling in Europe, Goodwin has dreams of a special girl. Raphael relates to Sara (in flashback) how they came to Europe once before on the trail of Mallos. He had kidnapped local Gypsy women, transformed pigs into men, and held the rest of the area in terror. A gypsy woman warns Raphael that he should not interfere, but he musters the Gypsy men and tries to lead them against Mallos. Meanwhile, Goodwin has become involved with a local gypsy girl, and chooses her and a normal life over Raphael. The Gypsy leader is captured, and ultimately Raphael surrenders himself to Mallos in return for the man's freedom.

The Immortal one, Sara and Goodwin are still in Europe when Sara is mysterioiusly kidnapped. The trail leads to a castle where a female demon has set up a ""fantasy resort"" for rich individuals. Demons take the role of fantasy characters like Hansel and Gretel, and then take over their rich guests and use them to spread evil. Goodwin and Raphael infiltrate the castle. While Goodwin is transformed into a frog, Raphael finds Sara trapped in the role of Snow White to the demon woman's wicked stepmother role. Raphael defeats the head demon and her minions, and the millionaires are freed.

While on the trail of a demon, Raphael ends up inside a run-down, neighborhood bar. Unable to escape, he slowly discovers that he is locked in his own introspective voyage of emotional discovery until he is willing to admit to a few emotional realities. Goodwin and Sara are left on the outside to see if they came revive Raphael from this deadly trance.

While on the trail of the demon Ashur, Raphael is put into a mystic coma, appearing dead to Sara and Goodwin. Goodwin is now faced with the responsibility of taking on the role of Immortal Demonhunter. However, this is all a ploy on Ashur's part. He transforms a rat into a duplicate of Lester Dash (last seen in ""The Asylum"") and tries to lure Sara and Goodwin to him. Meanwhile, Ashur's assistant Ellie turns against him and awakens Rafe from his trance. Goodwin is on the verge of defeat, but Raphael steps in and sends Ashur back to Hell. Still, Goodwin knows that if Raphael one day falls, he can take his place.

Mallos returns with a deadly plan: having Raphael trapped in a mental institution, he does his demonic best to convince him he is not an immortal demon slayer, but ""Ralph"", an abusive drunken truck driver with impossible heroic delusions. The doctor in charge is unaware that he is serving the demons' cause. Goodwin and Sara (with the help of Lester - a homeless person telepathically tuned into the demon world) must save the Immortal from Mallos before his mind snaps.

Raphael is targeted by three demon assassins. He defeats the first one readily enough. The second, Oniko, is a female demon whom he briefly confronted early in his career. She tries to deceive him into trying to kill the third assassin, Randall (from the episode Half Way). However, it's a trap, and Raphael is attached to the generators at the local electrical plant. Meanwhile, Goodwin and Sara are looking for a permanent residence and run afoul of a demonic real estate agent who locks them up. They manage to escape and, overhearing the demons' plans for Raphael, get to the plant and free him. In the final battle Raphael sends Randall back to Hell.

Blaylock, a demon who can change forms and favors plagues, breaks into a government research lab and steals a virulent new germ-warfare disease. He escapes ahead of Raphael, who is taken into custody by the FBI. He manages to convince the agent to free him and then help him track down the supposed terrorist. Meanwhile, Goodwin and Sara have taken the plane that the disguised demon is supposed to be on. It goes down in the woods near a reservoir, and they quickly find out that everyone on the plane are demons! Raphael arrives and manages to stop the demon just before he can dump the vial in the reservoir. The demons takes his form, but is no match for the Immortal's sword skills.

Goodwin is in love with a woman who is in cahoots with a demonic artist. They have occupied a loft that stands on a site of great magical power, and plan to use it to open the way to Hell. Filled with misgivings, Raphael and Sara have no choice but to let Goodwin find out for himself. It turns out that the demons need Goodwin as a sacrifice, but Rafe intervenes and sends them back to Hell through the portal they were ready to throw Goodwin into.

A demon body-jumper is the Immortal's newest threat: immune to his sword, it jumps bodies with impunity, including the body of Sara's romantic interest: a detective investigating the series of bizarre murders it leaves behind. Ultimately the trio track it to a hospital where it plans to take over the body of a senator and spread chaos from such a high position. Raphael discovers that the demon is vulnerable to electricity, and weakens it long enough to use his sword to send it back to Hell.

In part 2, Mallos and Vashista torment Goodwin and use him as bait to draw in Raphael. The plan succeeds, but only after Mallos has sadistically ripped off Vashista's hand and sent her back to Hell himself. In their final battle, Mallos taunts Raphael with the fact that his daughter Kiyomi is still alive and out there...somewhere. He then manages to escape. Raphael and Sara recover Goodwin, and they decide to make Sara part of their team, bringing her scientific expertise on-board.