When Hope oversteps by trying to teach Sandy manners, Ugga gets her revenge by challenging Hope to do the impossible: civilize Thunk.

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.

Sandy is finally old enough to join Grug and Eep for the annual Daddy Daughter Day and Grug couldn’t be more excited. But when Sandy struggles to fit in with Grug and Eep’s traditions, Grug has second thoughts.

Phil and Guy try to disprove the Croods' belief that leaving offerings to the fire moon will prevent bad luck. But when their efforts seem to cause a series of mishaps, they'll have to retrieve the horn of a dangerous ramaconda to turn their luck around.

When Eep wants alone time with her new friend Dawn, Guy seeks a new friend of his own and finds an unlikely companion in Thunk.

Struggling to find their purpose on the Betterman farm, the Croods see an opportunity to prove their worth by harvesting Phil’s perilous (and sticky) bounceberries.

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.

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.

Bored of the viewing options on window, Thunk realizes what he’s been missing – real life drama! But when Thunk starts creating drama around the farm, the others set out to teach him a lesson.

Jealous of the Thunder Sisters, the men on the farm undergo a series of difficult initiation rituals to try and join the exclusive tribe of women.

After a crowverine gliding mishap, Dawn loses her confidence and tells Eep she's taking a break from adventures. Eep convinces Dawn to join her on one last adventure – climbing Grrr Mountain.

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.

When Gran announces it’s time to choose a new Thunder Sisters Queen, Ugga assumes she’s got it in the bag. But after a series of challenges (the Thunder Games), it becomes clear Gran might not be ready to step down.

Guy is always surprising Eep with romantic gestures and Eep wants to return the favor. But when Guy proves impossible to surprise, Eep has to step up her game.

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.

While the parents are away, the kids are in charge of the tree house, but when the punch monkeys invade the house, the kids find themselves out of their element.

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.

After Thunk and Guy tell Eep and Dawn a campfire story of Gorgwatch, a hideous monster who roams the woods, the girls are terrified.

When Guy invents a primitive skateboard, Eep and Dawn have a blast trying new tricks.

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 Eep and Dawn find a stranded egg, they eagerly take it in as their new pet, but when they learn the egg is not what it seems, they have to return it before it becomes dangerous.

When Grug overhears Thunk accidentally call Phil "Dad", he tries to reconnect with Thunk by taking him to the natural spectacle known as "Big Shine."

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 Grug thinks his forehead looks too big in Ugga's family portrait, she strives to make the painting disappear.

When the adults exclude the kids from their adult-only cave, the kids make their own much cooler cave, soon making the adults want to switch caves.