The boys travel to the past in a time machine and meet up with their past selves.

Alvin's dream of being older becomes a reality when he turns into an adult overnight.

Alvin discovers a giant ape while on vacation and tries to get it back to the mainland.

The first of Tim Burton's Batman movies is parodied.

Alvin and Simon seek a pearl of wisdom.

Chipmunks boldly go where no one has gone before in a take on "Star Trek."

Alvin pretends he is a robotic cop from the future that is part chipmunk, part machine, and all cop.

The boys find an alien in the back yard.

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Chip Tracy is going up against serious criminals that are plaguing the city.

The boys get a pet in exchange for a pizza.

A mermaid faces the human world in a spoof of "Splash."

Thanks to one of Simon's inventions, Dave and Zelda are accidentally shrunk.