On the day that a serial killer that he helped put away is supposed to be executed, a noted forensic psychologist and college professor receives a call informing him that he has 88 minutes left to live.

A team of elite mercenaries breaks into a wealthy family compound on Christmas Eve, taking everyone inside hostage. But the team isn't prepared for a surprise combatant: Santa Claus is on the grounds, and he's about to show why this Nick is no saint.

Joel and Ellie, a pair connected through the harshness of the world they live in, are forced to endure brutal circumstances and ruthless killers on a trek across post-pandemic America.