When Theodore mistakenly thinks he's the oldest brother, he tries to be a better role model for Alvin and Simon.

The Chipmunks and Chipettes team up together to compete in a dodgeball tournament. They learned that an opposing team has an unfair advantage using technology. Later on, they discovered that an enraged Theodore could be their secret weapon.

Kevin agrees to be Alvin's assistant to get closer to the music industry, but ends up running errands instead.

A favorite toy of Theodore's is lost on a rafting trip but then mysteriously shows up at the house, and it's alive.

Miss Croner attempts to help Theodore discover his true calling in life.

When Alvin accuses Dave of yelling at him too much, a therapist moves in to help Dave control his anger.

Jeanette is suddenly the clumsiest person on the planet. Is there something wrong with her - or her new glasses?

Theodore gets roped into doing Alvin's babysitting sitting job with a spoiled four year old.

When Theodore discovers Alvin and Simon have a secret club, he promises not to tell anyone if they let him join.

Dave promises to take Alvin to a water park if he gets a good grade on his test, but then a crow steals it.

Alvin accuses Dave of yelling at him too much, so a therapist moves in; when the school digs up an old high school time capsule, Miss Smith and Dave work together to keep an old secret.

Dave is thrilled when he thinks he's nominated for a Grammy, but it's actually an award for aging musicians.

Theodore helps Simon to try and get past his perfectionism in order to complete an art assignment for art class.