Almost a century ago, a desperate young woman crawled ashore a desolate Arctic island carrying a mysterious emerald-encrusted cross and a terrible secret. In the present day, Army epidemiologist Frank Slater is facing a court-martial, but after his punishment is mysteriously lifted, Slater is offered a job no one else wants — to travel to a small island off the coast of Alaska and investigate a potentially lethal phenomenon: The permafrost has begun to melt, exposing bodies from a colony that ...