Naval Divers: sequence on naval divers at school, being instructed in the fine points of their trade, being shown how to put on a diving helmet. Sequence on the men helping one diver with his heavy rubberized suit and his helmet, manning the pump as the diver climbs overboard and disappears into the water. Shots of diver returning to the surface, being rid of his helmet. Another diver surfaces, his suit ballooned out and tries to roll himself on his back. Final shots of diver coming out of water, walking on deck, and of instructor.