On vacation, the Croods find a family living alone in a utopia too good to be true. The Croods must escape and warn Ahhh! Valley before it's too late.

After finding their way out of a creature's stomach, the Croods head back to Ahhh! Valley to stop the Broods from taking over their homeland.

While he and Eep are held captive by the Broods for a ransom, Thunk finds his soulmate.

When Grug loses his commanding voice, he and Ugga search for it. Meanwhile, Eep gets carried away while acting as the valley leader's spokesperson.

Without asking the other residents, Grug makes a peace deal with the Broods.