Led by ex-navy SEAL Mike Chambers, the Trident Force is the blackest of the black ops.

Their specialty: fighting the war on terror at sea. Handpicked for their skills above and below the waterline, they do the jobs no one else can handle—and the jobs no one else can survive.

When a cargo ship sailing into the port of Naples is torpedoed, the Trident Force is alerted to the new and unexpected danger. A mysterious terrorist known only as the Sea Hawk has deployed underwater mines at strategic choke points to disrupt cargo operations around the world and create political and economic chaos.

The Trident Force plunges in, willing to put themselves in harm’s way, before another mine takes out another ship. But even as they search beneath the sea, their sights remain on their higher objective: find the Sea Hawk and bring him down.