It was one of the most daring and controversial missions in WWII history: On May 17th, 1943, an elite RAF squadron flew deep into Germany's Ruhr Valley carrying five-ton experimental spinning bombs that needed to be dropped from a height of exactly 60 feet at precisely 240 mph in order to destroy three key dams in the Nazi industrial heartland. Oscar® nominees Michael Redgrave and Richard Todd star in this gritty docudrama that depicts the infamous Ruhr Raid from drawing board to attack, hailed by critics as among the greatest war movies of all time. Robert Shaw co-stars in this still-influential action classic directed by Oscar® nominee Michael Anderson (AROUND THE WORLD IN EIGHT DAYS) and based on the international bestseller by Paul Brickhill (THE GREAT ESCAPE), presented here in its uncut UK version featuring footage not seen in the original American theatrical release.