With the advent of submarines, no ship can feel safe in the sea. In this game you will become an underwater hunter who must use their torpedoes to destroy the enemy. It all starts with the fact that in a brief training needed to sink a simple unarmed ship. Having dealt with the management can engage in a real fight. Each sea battle has a purpose in it, you need not only to attack enemy ships, but also to protect its own fleet, which may be affected by your inaction.