In May 1943, 617 Squadron RAF executed one of the most daring operations in military history. Flying barely 50 feet above black marble waters, Wing Commander Guy Gibson and his bombers mounted a raid against hydro-electric dams in Germany. Bold, courageous and precise - 617 Squadron became a World War II legend. Nearly seventy years later in April 2011, a new generation of elite flyers followed their Dambuster heroes into the theatre of war. Now flying supersonic Tornado GR4 bombers, 617 Squadron was deployed to Kandahar, Afghanistan - their mission, to provide close air support to troops engaged in brutal conflict on the ground. Commanding 617 is new boss Keith Taylor. An operational veteran with seven tours over Iraq, he knew that even with the latest cutting-edge weapons and sensors, only rigorous flying standards and watertight tactics would keep his young pilots safe.