Shecky Moskowitz, a deservedly struggling young comedian, lands a menial job on a cruise ship as the Miss-Universe contest is being held on-board. The Big Man On Deck for this voyage is Dickie Diamond, the ship's comedian and all-around ladies' man. As an assorted array of thugs, Panamanian mercenaries and terrorists try to storm the ship, Shecky hopes for one big chance to prove himself and enter the exciting world of cruise ship comedy.