"Alvin and the Chipmunks: The Squeakquel" is a 2009 animated musical comedy film and the sequel to the 2007 film, "Alvin and the Chipmunks." The story follows the beloved chipmunks—Alvin, Simon, and Theodore—as they navigate high school after their guardian, Dave, is injured. They must compete in a music competition to save their school from closing. In this film, the chipmunks encounter a rival group called the Chipettes, consisting of Brittany, Eleanor, and Jeanette. The movie features catchy songs, humorous antics, and themes of friendship and teamwork as the chipmunks and Chipettes work together to achieve their goals.