Accused of stealing the valley's food stash, the Croods are allowed a "try-all" to prove their innocence; Kevin gives Thunk tips on attracting girls.
Eep tricks her parents into letting her go to a grown-up party; to win back the title of Hefty Hunter, Grug seeks the help of a personal trainer.
Sandy expresses her frustrations about being treated like a baby by breaking into song; Grug helps Munk get his job back with an IQ-boosting worm.
Eep has a life-changing vision; afraid he is no longer respected as valley leader, Grug enlists Thunk to perform his life story.
Lerk's plan to save her worm playmates from becoming bait spirals out of control; Grug introduces his new invention to Ahhh! Valley.
Eep brings her friends to the Ahhh! Valley Tunnel of Terror to see if it lives up to its name; a mysterious creature saves Thunk from drowning.
When Grug loses his commanding voice, he and Ugga search for it; Eep gets carried away while acting as the valley leader's spokesperson.
After finding out Thunk is in love with Blurg Brood, Eep tries to interest him in a new girl; Ugga attempts to drive away selfish neighbor Snoot.
Eep's love of competition and destruction ruins Thunk's teamwork-based game; Squawk gets fired and is replaced by a very different kind of teacher.
Grug stumbles on an easy way to solve feuds as valley leader; Thunk narrates a documentary on one of Ahhh! Valley's many creatures.
To win a bet, Gran decides to marry Mow; Ahhh! Valley's kids compete in the Beasty Pageant to see who best poses, calls and struts like an animal.
To graduate with their pals, Thunk and Womp take Squawk's crash course; Grug makes a peace deal with the Broods.
A fast-approaching asteroid leads the residents to make hasty moving plans, but Grug insists he can defend their homeland.