Above Us the Waves

Directed by Ralph Thomas

With John Mills, John Gregson, Donald Sinden, James Robertson Justice and Michael Medwin

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.