 The Flintstones and the Rubbles are fans of a  reality show , called "Peek-a-boo Camera", which catches unsuspected people on candid cameras. Wanting to date their wives, Fred and Barney receive a call inviting them to "Bachelor Party" organized by the Water Buffaloes. As they lie to their wives that they are going to the hospital to see an agonizing brother, Fred and Barney have a ball at the party. Little they know they were caught on "Peek-A-Boo Camera", and then signed a contract. But consequences for this can be treacherous, and both must try to stop this nonsense before the wives discover the lie...