Interior shot of dummy plane, men sitting on both sides of plane practicing jump. CU of feet of men as they prepare to jump off dummy plane. Various shots of men practicing parachute jumping from dummy plane, jumping off one by one on gym mattress. MCS of instructor buckling parachute onto trainee, other trainees watching. MLS of trainees practicing parachute jumping in gym, men strapped to test straps, jumping off various training devices.