Tom Ryan, best-selling military novelist, has arranged a ride to familiarize himself with submarines. On August 10, 1991 he arrives at USS Haddock (SSN 621) as it prepares to depart San Diego for Japan. It would be a final deployment before going to the shipyard for nuclear defueling and decommissioning.The transit is routine with plenty of opportunity for training. It doesn't stay routine when Haddock is diverted to search for three Soviet submarines...