Secret of the Tidal

Zane, a fugitive secretly protecting a national treasure, is forced to kill an entire ship of criminals and flee with the vessel. On his way, he rescues Jimmy and Tina from a shark attack. But the ungrateful pair, obsessed with uncovering the ship's secrets, shove Zane overboard to be devoured by sharks and steal his ship. Zane survives by killing the shark, then reconnects with his partner Bruce to track them down and settle the score.