"Movement on Sector 4," hissed a voice in his earpiece. It was Sergeant Miller, leader of the remnants of the U.N. Defense Force. "Dr. Thorne, get inside the bunker. Now."
| Faction | Goal | Key Figures | | :--- | :--- | :--- | | | Contain the Terraformar threat, retrieve the Annex I crew. | Michelle Davis, Alex K. Stewart | | Rover Cult (Hundreds Club) | Use Terraformars to exterminate "inferior" humans. Create a new world order. | Adolf Reinhard (Leader), Joseph G. Newton (Scientist) | | Anti-Rover Resistance | Stop the cult and prevent Terraformars from reaching Earth. | Akari Hizamaru, Marcos E. García (early on) | | Annex I Survivors | Expose the truth, rescue comrades, survive on hostile Earth. | Akari, Shokichi Komachi, Michelle K. Davis |
The of Terra Formars marks a radical shift in the series' scope, transitioning from the claustrophobic survival horror of Mars to a global urban warfare scenario . After the devastating events of the Annex 1 mission, the battle against the evolved humanoid cockroaches—the Terraformars—officially arrives on Earth's doorstep. Plot Overview: The Invasion of Earth