Curtis plays the navigator of a tugboat crew which loses its cargo during a hurricane. In the calm eye of the storm, they come across a Russian research ship floating dead on the water. Boarding the vessel, they initially believe it to be deserted - but they soon realize they're not alone. First, they discover a terrified survivor, and then they find that the ship has been taken over by a ruthless alien intelligence. Now, the small band must fight for their lives against a force that has come to claim Earth for its own, and creates bio-mechanical monstrosities with one goal: eliminating the virus called humans.