The Chipmunks create a robot out of Alvin's video game, so that it can carry all of their equipment to their concerts. But, the robot goes beserk when it begins to capture every hat it sees, like the video game, it was created from, and It's up to Alvin, Simon, and Theodore to stop the robot.

Alvin tells a girl he wants to impress that they are famous and that they are going to be starring in a rock concert on live t.v., but Alvin must convince the producer to let him play.

Alvin and Simon have Theodore enter a wrestling exhibition under the name ""Mr.Fabulous"" and he goes up against a montrous Russian wrestler called Ivan The Terrible.

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.

The boys enter a contest so that they can win a chance to sing with Dolly Parton. But, the only way they can win is if they are from Nashville. The boys enter the contest anyway, but make an enemy when they win. The person who got second place in the drawing is determined to prove that the Chipmunks aren't from Nashville, and win his chance to sing with Dolly Parton.