The USS Tang was a state-of-the-art Balao class submarine, certified by the Navy to dive up to 400 feet. But in order to test her for battle, commander Dick O'Kane decides to take her even deeper.

Summary and Key Points: The USS Bullhead (SS-332), a Balao-class diesel-electric submarine, was the last American submarine lost in combat. Sunk by Japanese aircraft off Bali on August 6 ...