This film is a sequel to "The Monster in disguise", one of the top three box office hits of 1994. Tim (Jamie Kennedy) and his wife Duya (Traylor Howard) live a peaceful life. One day, his dog discovered a green mask. Tim, who accidentally put on the mask, had magical magic and uncontrollable madness, which made his colleagues and bosses look at him differently. Nine months later, his son Wei Zai was born, accompanied by strange powers. This immediately attracted the attention of the original mask's owner, Loki (Alan Cumming), the "god of mischief", and Loki's father, the one-eyed god Odin, also ordered him to retrieve the mask. At this time, Tim also wanted to find the mask as soon as possible to complete the creation of the cartoon characters requested by the boss. At this time, Loki was getting closer and closer to them, and Du Ya also left the town on a business trip, leaving only Tianmei to play the role of full-time father. When Wei Zai was gradually able to master this superpower, Rocky finally found the family...