Tribal nitwits, Zed and Oh, are two guys living in the year one. Neither one can hunt nor gather, so they are thrown out of their Neanderthal community and dung-and-stick huts. Zed eats the forbidden fruit and the two become curious about what may lay outside of their limited little world. They decide to embark on a journey through the ancient world. On their travels they meet Cain and Abel, Abraham and Isaac. They wind up in Sodom where their girlfriends...