Humanity's attempt to terraform and colonize Mars goes horribly wrong.

In the late 26th century, overpopulation on Earth is reaching the breaking point, and humanity must find new frontiers. The terraforming of Mars has taken centuries but is now complete. The colonization of Mars by humanity is an epoch-making event, but an unintended side effect of the terraforming process unleashes a horror no one could ever have imagined...

The members if Ichi Security and the SPACIALS continue their deadly fight on the artificial island in an attempt to rescue the human hostages of the Terraformars. But the human traitors' incredible technology closes in on Akari and Michelle as they make their escape. In the confusion, Hongo launches a suicidal attack that brings him face-to-face with a mysterious warrior who knows a terrible secret about the coming apocalyptic battle for Earth!