Leo joins a squad of hardened mercenaries led by , who is desperate for redemption after the events on the ship. As they descend into the bunker, the "infection" changes. The possessed aren't just sprinting zombies anymore; they are melding together, forming massive, wall-crawling hive-minds that mimic the voices of the team's loved ones to lure them into the dark.
Leo realizes the only way to kill the entity is to destroy the bunker’s cold-fusion reactor. As the possessed swarm the room, Leo keeps the camera rolling. The final shot is a POV of the camera falling to the ground as the screen turns white from the blast.
The year is 2026, and the world has fallen. Following the events at the international airport, the demonic "Medeiros" infection has jumped the Atlantic, evolving beyond a localized virus into an airborne spiritual plague.