Laurie Shoat, a young mother, struggling with post-partum depression, is found dead and her baby is missing. The police assume it was a murder-suicide, but her husband Jack isn't convinced. He believes that his baby may still be alive and begins a search to clear his wife's name and to find the infant.

Based on a true story, this tells the story of a young woman who is the only survivor of a plane crash in the Sierra Nevada mountains, and her struggle to get to safety despite her injuries, below-freezing temperatures and rough, and at times impassable, terrain.

Speculates that John Wilkes Booth, murderer of Abraham Lincoln, escaped to Canada instead of being tracked down and killed soon after the assassination.

The sheriff and his deputies from the first movie decide to take a vacation in the Caribbean. Their holiday will be short-lived, however, as the thawed murderer gets inadvertently re-frozen and brought back to life. As if that weren't bad enough, he now has the ability to remain frozen even in tropical temperatures, and he's headed south to settle some old scores.

On his way to be executed, the vehicle containing notorious serial killer Jack Frost collides with a hazardous chemical truck, turning him into a snow covered mutant and unleashing him on the unsuspecting town of Snomonton.