A rancher on the Arizona border becomes the unlikely defender of a young Mexican boy desperately fleeing the cartel assassins who've pursued him into the U.S.

A Texan traveling across the wild West bringing the news of the world to local townspeople, agrees to help rescue a young girl who was kidnapped.

After leaving their cave, the Croods encounter their biggest threat since leaving: another family called the Bettermans, who claim to be better and evolved. But after Eep and the Bettermans' only daughter escape, the two families must put aside their differences to save them.