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 to attack it, using midget submarines to plant underwater explosives.

Cast:John Mills, John Gregson, Donald Sinden, James Robertson Justice, Michael Medwin, Theodore Bikel,

Genre:War,

country:United Kingdom,

Production:London Independent Producers,