Ryan is about to be lowered onto the Dallas. Ryan is telling the Helicopter captain that he will have a war if he doesn't get on the sub. This happens just before the crewman spots the sub surfacing. The crewman is standing in the doorway scanning the ocean for a sub. Reflected in his face plate should be the ocean. Instead a member of the crew is seen walking onto the set. The legs and shadow of the person is clearly visible.