The ship's bookkeeper accidentally becomes the driver for a trio of jewel thieves, who are being trailed by a suspended police lieutenant in disguise. Captain Stubing is pushed by his daughter to return to the hotel in Barbados where he and his late wife honeymooned. The new cruise director is smitten by a passenger who is a TV star, but another ship employee is interested in her. Doc must care for the pregnant wife of the ship's chief executive.