As the summer of 1943 unfolded Currie and his crew flew a mission to Mannheim, several missions to Milan, and then on the night of 17/18 August a trip to a secret weapons facility at the German coastal town of Peenemünde. The crews were told the site was being used by the Germans to develop a new radar guided night fighter, but the truth was the Air Ministry targeted it because they had learned the Germans were developing a new weapon there, the V-2 rocket. This may have been the most important mission Currie and his crew participated in. On their way in to the target they were attacked 4 times by German night fighters, but were able to evade. The mid-upper gunner, George Protheroe, put a stream of .303 machine gun fire into one and may have shot him down. Bomber Command lost 40 aircraft on the mission, including that of the A Flight commander from 12 Squadron, but the V-2 rocket program was set back a crucial two months.