In the icy desolation of Antarctica, a team of scientists discovers a crashed alien spacecraft buried beneath the ice.

When they recover a mysterious, frozen being from the wreckage, they unleash a terror beyond their wildest nightmares. As the creature thaws, it reveals an ability to mimic any living thing it touches, turning friends into foes and trust into paranoia.

In a desperate struggle for survival, the team must determine who among them is still human . . . and who has been taken over by the alien invader!