Frogmen aboard a United States submarine in the Sea of Japan are ordered to scuttle two sunken American mine sweeping ships called The Pirate and The Pledge before the Red Chinese can salvage them for their top secret electronics.
A sailor who has been corresponding with a young girl from Long Beach, Ca. thinks he has found true love. But he is devastated when his ship docks in Long Beach for shore leave and she refuses to meet him for reasons unknown to him.
The captain of a submarine faces a situation where he makes contact with an enemy convoy just as a life threatening medical emergency occurs on board. The Captain has to make the decision of what takes precedents.
The Pentagon goes in search of information about a naval officer who seems to have disappeared from their records. What they uncover astounds them and leads them to a conclusion that even stuns the young man's mother.