Luchando por encontrar su propósito en la granja Betterman, los Croods ven la oportunidad de demostrar su valía cosechando las peligrosas (y pegajosas) moras de Phil.

Cuando Eep quiere tiempo a solas con su nueva amiga Dawn, Guy busca una nueva amiga y encuentra una compañera poco probable en Thunk.

Cuando los Betterman invitan a los Croods a unirse a su noche de juegos familiar, dos cosas quedan claras: Phil necesita ganar y Grug odia perder.

Después de un percance de deslizamiento de crowverine, Dawn pierde su confianza y le dice a Eep que se está tomando un descanso de sus aventuras. Eep convence a Dawn para que se una a ella en una última aventura: escalar la montaña Grier.

Cuando Hope se sobrepasa al tratar de enseñarle modales a Sandy, Ugga se venga desafiando a Hope a hacer lo imposible: civilizar a Thunk.

Ugga tiene un secreto: está llevando a Eep a "fracasar con los juncos", un pasatiempo divertido y peligroso que Ugga disfrutaba cuando era adolescente. La emoción de Ugga se desvanece cuando Hope se invita a ella y a Dawn.

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.

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.

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.