The British are desperate to shorten the length of WW2 and propose a daring raid to smash Germany's industrial heart. At first the objective looks impossible until a British scientist invents an ingenious weapon capable of destroying the planned target.
Michael Redgrave....Doctor B. N. Wallis, C.B.E., F.R.S.
Ursula Jeans....Mrs. Wallis
Basil Sydney....Air Chief Marshal Sir Arthur Harris (now Marshal of the Royal Air Force) G.C.B., O.B.E., A.F.C.
Patrick Barr....Captain Joseph (Mutt) Summers, C.B.E.
Ernest Clark....Air Vice-Marshal The Hon. Ralph Cochrane (now Air Chief Marshal) G.B.E., K.C.B., A.F.C.
Derek Farr....Group Captain J. N. H. Whitworth, D.S.O., D.F.C.
Stanley Van Beers....Sir David Pye, C.B., F.R.S.
Colin Tapley....Doctor W. H. Glanville, C.B., C.B.E.
Frederick Leister....Committee Member
Eric Messiter....Committee Member
Laidman Browne....Committee Member
Raymond Huntley....Official, National Physical Laboratory
Hugh Manning....Official, Ministry of Aircraft Production
Filmography links and data courtesy of The Internet Movie Database.