After their cave is destroyed, a caveman family must trek through an unfamiliar fantastical world with the help of an inventive boy. The Crood is a very sad cave man who wants to go out and discover the world. When the crood goes out of his cave, he discovers many things. The movie follows the world's first Crood as he embarks on a journey of a lifetime when the cave that has always shielded him from danger is being renovated. Traveling across a spectacular landscape, the Crood discovers an incredible new world filled with fantastic creatures and even finds a love, Mrs. Crood.