With the Annex 1 cruising toward Mars, an eerie mood pervades the crew as they are debriefed on their role in combating the lethal A.E. Virus. Moments before arrival, a deadly presence onboard thrusts the crew into a collision course with the unknown.

Calm is fleeting for Captain Komachi and crew, who discover a bizarre stowaway on Mars. The confusion continues when an unlikely hero parries potential devastation from another terraformar ambush.