Aspiring rock singer Jack Frost (Michael Keaton) has been struggling for years to make it big, often missing out on time with wife Gabby (Kelly Preston) and son Charlie (Joseph Cross) along the way. While driving to a music mogul's party one wintry evening, Jack realizes that his family is more important than his career, and turns his car around - only to plunge to his death when he swerves off the road in a blizzard! One year on, an angry and depressed Charlie is still mourning for his father. Deciding to make a snowman in the garden (one of the few activities Jack always found time for), Charlie gives it his dad's old scarf - only for the snowman to come to life as a reincarnated Jack. Determined to compensate for the mistakes he made in his lifetime, the new, snow-based Jack sets out to be the kind of father Charlie always wanted.