Riptide

In 1695, a notorious English pirate buried his bounty in a maze of booby-trapped tunnels on an island off the coast of Maine. In three hundred years, no one has breached this cursed and rocky fortress.
Now a treasure hunter and his high-tech, million-dollar recovery team embark on the perfect operation to unlock the labyrinth's mysteries. First the computers fail. Then crewmen begin to die. The island has guarded its secrets for centuries, and it isn't letting them go... without a fight.