When Norwegian resistance leader Lieutenant Erik Bergman reports the location of a German V-2 rocket fuel plant, the Royal Air Force's 633 Squadron is assigned the mission to destroy it. The plant is in a seemingly-impregnable location beneath an overhanging cliff at the end of a long, narrow fjord lined with anti-aircraft guns. The only way to destroy the plant is by collapsing the cliff on top of it.
as Wing Commander Roy Grant
as Lieutenant Erik Bergman
as Hilde Bergman
as Air Vice-Marshal Davis
as Group Captain Don Barrett
as Squadron Leader Frank Adams
as Flight Lieutenant Gillibrand
as Flight Lieutenant Scott
as Flying Officer Hoppy Hopkinson
as Flying Officer Bissell
as Flying Officer Evans
as Rosie, barmaid at the Black Swan Inn
as Lieutenant Nigel
as Flight Lieutenant Singh
as Flight Lieutenant Frank
as Lieutenant Jones
as WAAF Sergeant Mary Blake / Bissell
as SS Interrogator
as Lieutenant Maner (uncredited)
as Ericson, Norwegian Resistance (uncredited)
as Johanson, Norwegian Resistance (uncredited)
