Pilots train on Mosquito bombers: MSs of pilots posing for camera on air base. Two shots of Mosquitoes standing in a row, their engines revving. Pilots in flying togs come out of operations room, walk by their planes, study maps, board their aircraft. LAS of engines starting. HAS and level shots of pilots in cockpit as seen from outside. FOLLOW SHOT of planes taking off one by one past the camera - snow on the ground along the runway. Low level AERIAL SHOT of snowy ground streaking past as seen from nose of aircraft. GROUND TO AIR shot of Mosquito flying at low altitude as it passes the camera. TRAVELLING SHOT along a line of Mosquitoes on the airfield. Shots of planes taxiing past the camera. LAS interior shot of pilot and co-pilot in their seats wearing oxygen masks.