After a friend overdoses, Spoon and Stretch decide to kick their drug habits and attempt to enroll in a government detox program. Their efforts are hampered by seemingly endless red tape, as they are shuffled from one office to another while being chased by drug dealers and the police.

Alvin has entered himself and Simon and Theodore in a hot-air balloon race around the world against the Chipettes to deliver diamonds for a group of diamond smugglers. The winners will collect a prize of $100,000. Kids and adults will enjoy this film made with musical numbers by the Chipmunks and the Chipettes.