A little girl with formidable powers imagines into existence the Sandman, a terrible monster from her nightmares that brings harm to anyone who wants to hurt her.

Josh and Isabel Harris, after suffering the loss of their only child, relocate to a secluded hillside research facility with the hopes of repairing their broken family. After years of trying, Josh and his research partner, Thomas, have a breakthrough involving a cryptic shortwave radio signal and its universal origins. Something within the signal resonates with Isabel and she begins experiencing seeming hallucinations and visions of distant memories. Upon further investigation into the phenomenon, the scientists fear for Isabel's health while Isabel fears the signal has attracted something sinister to their new home.

A group of grad students have booked passage on the crabbing boat Harbinger to study the effects of global warming on a pod of Belugas in the Bering Sea. When the ship's crew dredges up a recently thawed piece of old Soviet space wreckage, things get downright deadly. It seems that the Russians experimented with tardigrades, tiny resilient animals able to withstand the extremes of space radiation. The creatures survived, but not without mutation. Now the crew is exposed to aggressively mutating organisms. And after being locked in ice for 3 decades, the creatures aren't about to give up the warmth of human companionship.