The next morning, McCaffery explains that there will be more creatures that will come looking for Arthur and his training should have started years before. After Arthur gets ahold of some water, his strength returns and he kills Nadia. When he wakes up, Arthur finds that Nadia has also kidnapped McCaffery, with plans to bring them both back to Atlantis to be executed. Nadia returns and injures Eva, capturing Arthur.
McCaffery explains that he, Arthur and Arthur’s mother are exiles from Atlantis, and that Arthur is heir to the throne. Arthur escapes, but only thanks to a little help from McCaffery, who has clearly been keeping tabs on our hero-in-waiting.
Nadia reveals herself to not only be a siren, but the one who took his mother all those years ago. That night, Arthur meets a sultry young woman named Nadia (Adrienne Palicki), who convinces him to go skinny-dipping (it doesn’t take much). Navy Admiral named Brigman (Rick Peters) transports the unidentified man to a secret Navy installation, and persuades Torres to join his team, whose mission is finding a connection between the disappearances of thousands of individuals, and their reappearance years later without seeming to have aged at all. Her jet crashes when Arthur’s necklace emits a surge of light, like what he saw as a child. Torres (Denise Quiñones) is sent to investigate the area. Meanwhile, the Coast Guard picks up an unidentified man floating in the Bermuda Triangle, and a pilot named Lt. Later, he is approached by an intimidating man named McCaffery (Ving Rhames), a lighthouse keeper who seems to know an awful lot about Arthur. Promising to grow up (sort of), Arthur tells his friend and business partner Eva (Amber McDonald) that he felt like the dolphins were “calling” to him. His Navy officer father (Lou Diamond Phillips) bails him out of trouble, giving him a lecture on responsibility.
Despite this, Arthur barely bothers to contrive an alibi. Ten years later, a grown-up Arthur (Hartley) is visited by the local police for releasing captive dolphins from a marine park.