A peace treaty between the Earth and the Black World, a parallel universe of demons, is coming to an end. Two cops, Taki, a human male, and Maki, a female demon, are assigned to protect a diplomat who will help secure another treaty. A radical group of demons from the Black World are out to assassinate the diplomat and prevent the treaty; only the bond that forms between the two cops can save the Earth from destruction.
Cobra, a notorious space pirate, is enlisted by bounty hunter Jane to rescue her sister from the strange being known as Crystal Bowie, but then finds himself drawn into a complex struggle over the fate of a mysterious wandering planet.
Two years after the events of Galaxy Express 999, Earth has become a battlefield, and Tetsuro is summoned to board the Three-Nine once more. In this, the shattering, full-length theatrical conclusion to Leiji Matsumoto's epic story, all questions will be answered and all mysteries will be revealed as Tetsuro embarks on a journey which will reveal a secret so awful, even Maetel herself can hardly bear to speak of it.
