About life of the crew of the submarine named "812".
Naval exercises with the crew of the submarine hull number 812. The submarine submerged in the water falls to the bottom, "escape" from a simulated enemy. Transmitted orders of a submarine. Submariners in their battle ground. Emergency alarm in connection with a conditional a hole in one of the compartments of the submarine. The sailors are buried "holes." Diver Check damaged submarine after the elimination of "accident." Submarine to the surface.