Joy tries to enjoy the days leading up to Christmas, but her new little brother drools on the ornaments, eats all the cookies, and wreaks havoc on the holiday, leaving Joy's holiday spirit weakened.
All the dinosaurs play nicely, except Tyrannosaurus wrecks. T-Wrecks is not a bad guy; he tries hard to make amends, and the final scene proves he is not the only tiny dino capable of making a mistake.