Tumak (John Richardson) is banished from his tribe after angering their leader (his father), Akhoba. After wandering for several days, he comes upon the Shell Tribe, a group that lives on the coast. There, he meets Loana (Raquel Welch, in a fur push-up bra and form-fitting loincloth). She nurses him back to health through all kinds of romantic grunting and groaning. No words are spoken in this prehistoric saga that features moments of pure camp.