Down Periscope plot
"A rusty sub. A rebel commander. A renegade crew. When destiny called, they should have hung up."
All his life, Commander Tom Dodge has dreamed of piloting a nuclear submarine, and after some rigorous training, he is finally certified. Because he is much loved by his crew, it is an unpleasant surprise for him when he is told that he will not be promoted. The Navy orders him to engage in a naval battle with an old rusted World War II submarine and a set of misfits as crew, which he later learns is deliberately meant to lose. This is to ensure that the superior US naval fleet emerges as an overwhelming winner. Don't let this please the Commander and he will do everything he can to make his "opponents" a chop.