It's 1967, and a group of entertainers join an old Greek liner for some Mediterranean cruises but everything soon goes wrong, often with hilarious results.
Paul, a young tenor gets a job as an entertainer aboard an old and dilapidated transatlantic liner now owned and run by Greeks but chartered by Hiram B. Hirschfield for a series of cut-price Mediterranean cruises. It's 1967, and Hirschfield's Holiday Camps are now facing stiff competition from cheap package holidays abroad to places like Spain. Hirschfield, a rather eccentric American, decides to hit back with £50 cruises for very ordinary folk. However, everything goes wrong from the moment the SS King Midas sets off from Southampton, and the motley group of cabaret artistes are caught in the middle of the general mayhem. Non-stop diversions are planned to distract disgruntled passengers from the many discrepancies on board, including frequent, themed floor shows.Nevertheless, there is still just enough time spare for the fourteen 'Greenjacket' cruise staff entertainers to get up to plenty of bizarre shenanigans. Some of the young passengers, newly-liberated by the swinging Sixties, are certainly out to have a good time, and there's something for everyone available somewhere on the ship..Despite all the ups and downs at sea, young Paul usually manages to see the funny side of things.