By scanning the locations at the bottom of the ocean where sunken ships, treasures and even cities lie, the show tries to answer what they look like, how they got there and if they hide any secrets.。Ben Sherman is about to complete Phase 2 of his rookie year. During Phase 3, he will be allowed to patrol solo. Detective Adams and Officer Brown are assigned new partners. Rene Cordero, Adams's new partner, is obsessed with receiving glory and press coverage. Their first case involves the search for an elderly man who left his home accompanied by an unknown black man. Brown's ...。