Theodore becomes obsessed with cleanliness after a school speaker talks about the danger of germs.

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

The boy's imaginations run wild when Dave disappears. When they finally find him, they're convinced he's a zombie.

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

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.

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

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

Dave gets temporary amnesia so the boys trick him into letting them skip school and go on a ski trip instead.

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

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

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

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

Alvin thinks Theodore's teddy bear can tell the future, and goes all out to make Talking Teddy his friend.

Alvin lies to Theodore about a fake holiday to get out of chores, so Dave forces Alvin to make the holiday real.

Dave discovers he's not too good at roughing it outdoors when he goes on a day hike with the Chipettes.