When the Bettermans invite the Croods to join their family game night, two things become clear: Phil needs to win and Grug hates to lose.

Ugga has a secret - she's taking Eep to "flop with the bulrusses" - a fun and dangerous pastime Ugga enjoyed as a teen. Ugga's excitement fades when Hope invites herself and Dawn along.

When Phil humiliates himself playing throw-go-nut with the punch monkeys, the Croods band together to help him regain his confidence. Unfortunately, Phil goes from confident to cocky and bets the farm on a game of throw-go-nut with the punch monkeys.

The Crood and Betterman parents have been struggling to get along – they’re so different! The two couple realize they need some time apart and decide to get away from the farm and each other.

Eep loves action and adventure - it's in her blood. But when Eep starts adventuring in her sleep, she has to try to find the cause of her new sleep walking to avoid ending up in dangerous situations.

When Phil learns no one on the farm thinks he's fun, he sets out to prove them all wrong... by building a crazy amusement park.

When Phil invents a simple new game called ball-in-cup, everyone except Hope, can't stop playing it. But just when Hope thinks she's rid the farm of the game, she finds herself addicted to the game worst of all.

When a freak lightning strike turns Thunk into a genius, Phil is thrilled to have someone likeminded on the farm, until the farm residents start asking Thunk for help with problems on the farm instead of him.

When the Croods find a man frozen in a block of ice, they thaw him and discover he was an old flame of Gran's!

Determined to show Hope that she's just as good a cook, Ugga decides to cook a meal that will wow the farm residents. But when Ugga realizes she's out of her element, she turns to the punch monkeys for help.

When Phil's beloved stick companion Philliam goes missing, he enlists the help of Ugga and Eep who lead an investigation across the farm.

After a back-breaking day of farm chores, all Grug and Phil want is a slice of pie. But when there is only one slice left, both Grug and Phil argue that they deserve it more. To prove who works harder, Grug and Phil switch chores on the farm for a day.

Grug accidentally reveals a subterranean cave beneath the treehouse. When Phil can't convince Hope, Grug, and Ugga that the treehouse is more impressive than the new cave, he sets out to destroy the cave.

Upset that he can't grow a beard, Grug resorts to some unorthodox hair growth methods. But when Phil's experimental hair formula makes fur grow all over Grug's body, he flees to the woods to avoid the other farm residents' attempts to shave him.

Dawn hates her mother's beetballs and has been secretly dumping them in the lagoon to spare her feelings. But when the Bettermans (and Eep) go on an underwater expedition in the lagoon, Dawn must keep her family from discovering her secret.

The Croods, Bettermans, and Guy compete in the Throw-Go-Bowl - an annual Throw-go-nut championship game against the punch monkeys. Grug's desire to win above all else threatens to push away his teammates.

After a big argument between the Croods and Bettermans, the parents decide to separate the two families. Not wanting to split up, the kids try to convince the parents to make up before the Croods move off the farm entirely.