After snobby neighbors move in next door and complain about a bone pile blocking their backyard view, the Croods start the first prank war ever.

Everyone loves it when Thunk uses shadow puppets to make the world's first movie ... until they see the end of the show.

Eep invites her friends over for the first sleepover in history.

Thunk saves the day when wacky beasts invade.

Grug is called a zombie after taking the world's first nap.

An animal bite has a freaky effect on Grug.

The Croods must tame Sandy's wild behavior or she'll get exiled.

Grug struggles to learn a hunting skill that requires brains rather than brawn.

When the adults ban dancing, the teens rebel with an underground club.

Eep hunts for an elusive night mare but finds the night crazies.

After neighbor Snoot's wife kicks him out, the Croods help him win her back.

Eep and Thunk stumble upon a treasure trove of eggs and become rich -- and mistrustful of each other.

To get a break from his honey-do list, Grug has his doppelgänger fill in for him.

While Grug has his first day as leader of Ahhh! Valley, a new family pet makes Sandy jealous.

When the Big Chickuna invades the valley, all the residents evacuate to safety except for Bulk, whose rescue becomes a contest between Grug and Snoot.

Grug invents a sport he hopes will earn him a spot on the Wall of Fame.

While laid up with an injury, Eep witnesses a suspicious encounter.

When Grug is imprisoned for a crime he didn't commit, he must escape to clear his name.

Accused of stealing the valley's food stash, the Croods are allowed a "try-all" to prove their innocence.

Afraid he's no longer respected as valley leader, Grug enlists Thunk to perform his life story.

Ugga attempts to drive away selfish neighbor Snoot.

A fast-approaching asteroid headed toward Ahhh! Valley leads the residents to make hasty moving plans, but Grug insists he can defend their homeland.