In World War II, the greatest threat to the British navy is the German battleship Tirpitz. While anchored in a Norwegian fjord, it is impossible to attack by conventional means, so a plan is hatched for a special commando unit … John Mills, John Gregson, Donald Sinden, James Robertson Justice, Michael Medwin, Theodore Bikel, James Kenney Added on Amazon Prime 2020-12-16. Youtube Trailer