Alvin and the Chipmunks

Season 1, Episode 10

Episode Title: Unidentified Flying Chipmunk

Air Date: 1983-10-22

Overview:

Alvin convinces Theodore to dress up as an alien to attract more fans, but they also attract some investigators with the government who research ufo's. The investigators decide to kidnap Theodore and perform experiments on him and Alvin and Simon must think of a way to save him.