Curtis Credel

Lt. Columbo's (Peter Falk) pleasure cruise aboard a liner to Mexico is diverted when Columbo becomes involved in the slaying of the ship's featured vocalist.

Stanley Perkins returns to Rose, but he's not well. A new singer at the Dew Drop pays too much attention to Toni.

Boss Hogg (SORRELL BOOKE) almost loses $100,000 when three con men try to convince him that his bank is responsible for the theft of their precious shipment of gold.

Jon and Ponch take after a tractor-driving gang who park at busy loading areas, hitch up a loaded trailer, and make off with their loot. While on their mission, the two have to face the scrutiny and inspection of their new watch commander, Lt. Bates (Granville Van Dusen).

Magnum is hired by Barbara Terranova, a financially broke woman who can only afford his services for one day, to find her missing fiancé Roger. But the case has several tangles in store when Magnum finds there are others searching for Roger too. Matters are complicated even further when T.C., desperate for some much-needed publicity for Island Hoppers, collars him into competing in the upcoming swim-run-bike Ironman triathlon. Fitness trainer Barbara trains him for the event in exchange for his extended help in locating her fiancé.