On the high seas a conflict between a U-boat captain and his mestizo grandson is working itself out with murder and destruction in the works. Will the college-age grandson prevail against the aged U-boat captain and his WWII generation crew, bent as they are on the sinking of a U.S. aircraft carrier? When you add into this mix an Iranian nuclear sub, bought from the Russians to obliterate Israel, you have a realistic story See how the lone grandson fares.