Set in a dystopian future, the the human race, after having tried to find an alternative to Earth (which is taken over by Godzilla), decide to come back and fight Godzilla and reclaim the planet. For a movie with such a short runtime (for a Monster movie), it takes its time to buildup the story and the world.

However, once we get into the thick of the action, the movie moves along at breakneck pace, with the humans, Godzilla, and [spoiler] other new species that have evolved on Earth (turns out that the humans have been absent from the Earth for about 20000 years, giving rise to a new animal kingdom) [/spoiler] all having a go at each other.

While the movie is purely a Monster slugfest, it does skim the speculative sci-fi territory, especially in terms of evolution and the effect of the absence of humans on it.

I watched the English dubbed version, so I am not sure of the accuracy of the translated dialogue. However, it was good enough in English, with the correct emotions portrayed behind the words.

The animation is beautiful, and offers a great view of the post-human world. Godzilla, who is deemed to be Earth's response to growing human decadence, resembles something spawn from the womb of the planet.