Do you have what it takes to command your own fleet of five ships? Can you survive thrilling, ruthless combat on the high seas? Stalk your enemy through unfriendly waters. Secretly plot your plan of attack. Then fire. It's a hit! But remain on red alert, for your adversary wants victory as much as you do! Capsize a carrior. Demolish a destroyer. Sink all five ships in your opponment's fleet before your own vessels are found and sunk! Blast the torpedoes and full speed ahead!