When paleantologist Kate Lloyd (Mary Elizabeth Winstead) has traveled to the desolate region of the expedition of her lifetime. Joing a Norwegian scientific team that has stumbled across an extraterrestrial ship buried in the ice, she discovers an organism that seems to have died in the crash eons ago. But it is about to wake up.
When a simple experiment frees the alien from its prison, Kate must join the crew's pilot, Carter (Joel Edgerton), to keep it from killing them off once at a time. And in this vast, intense land, a parasite that can mimic anything it touches will pit human against human as it tries to survive and flourish.