No one thought much about the storm. Not the National Weather Service and not the big‑name meteorologists. Local weatherman Wally Wellman thought there might be trouble, but even he couldn't predict the natural disaster that was about to lay siege to the quiet suburb of Sheridan, Michigan.

Now, with resources stretched to their breaking point, Sheridan police officer Mike Stuart must try to keep the town safe. But there something is lurking in Sheridan. Something as cold as the snow and ice, and just as deadly. A pair of escaped convicts, on the run south, have been stranded in town. But they don't plan on laying low. And as the death toll rises, Officer Stuart must face down enemies far more dangerous—and unpredictable—than any storm.