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

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

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.

When Alvin pranks Simon with a trick website, the chipettes prank Alvin back.

Simon creates a drone that can not only deliver pizzas, but has the ability to learn.

Alvin worries that the munks are responsible for making Dave boring when they find out he used to be a rock star.

Theodore's teddy bear is bear-napped, forcing the boys to work with Officer Dangus to get him back.

Alvin starts stealing the morning paper to sell at school, but Dave blames the paperboy and refuses to pay up.

Brittany's furious when she thinks Alvin has been writing on her blog and vows to get him back.

Brittany's dream of being a fashion designer turns into a nightmare when her ideas are stolen.

Coach Dobkins challenges Miss Smith and her ragtag team of outcasts to a baseball game to see who's the best.