Scott Calvin is an ordinary man, who accidentally causes Santa Claus to fall from his roof on Christmas Eve and is knocked unconscious. When he and his young son finish Santa's trip and deliveries, they go to the North Pole, where Scott learns he must become the new Santa and convince those he loves that he is indeed, Father Christmas.
Decorated soldier Captain Colter Stevens wakes up in the body of an unknown man, discovering he's involved in a mission to find the bomber of a Chicago commuter train. He learns he's part of a top-secret experimental program that enables him to experience the final 8 minutes of another person's life. Colter re-lives the train incident over and over again, gathering more clues each time. But can he discover who is responsible for the attack before the next one happens?