 It isn t a really good day in the life of caveman Brog. His wife Oola has just thrown out most of his stuff. Apparently she wants a tidy cave. But Brog isn t ready to part from his belongings yet. He is especially attached to his mysterious stone which he uses for hunting. This day he isn t very lucky however. With an empty stomach and soaked by rain, he returns home. Close to his, he hears Oola screaming. The cave is under attack by a vicious bear. Brog doesn t hesitate a moment.