Fathom Harvill, a
skydiver, is in Spain with a U.S. parachute team. She accepts a lift from a man called Timothy and is taken to see Douglas Campbell, who convinces her that he is a British agent working for
NATO and wants Fathom to help him find a triggering mechanism for a
nuclear weapon that has gone missing in the Mediterranean. He tells her that the device is hidden inside an ancient Chinese figurine known as the
Fire Dragon. Following Campbell's plan, Fathom skydives into the villa of Peter Merriwether, who has a Chinese assistant, Jo-May Soon, and is also searching for the figurine. She finds a dead body and is caught by Merriwether, who accuses her of the murder. Fathom convinces Merriwether that she is innocent. He tells her that the nuclear weapon story was a ruse, the Fire Dragon was stolen from a Far East museum by a
Korean War deserter, Merriwether is a private investigator, and Campbell is the deserter. Also in hot pursuit of the figurine is Serapkin, a rich Armenian private collector who wants it for himself. After fending off a knife attack and another from a
harpoon, Fathom chances upon the figurine in her makeup case. Campbell now convinces her that he is the trustworthy one and Merriwether the deserter. Fathom boards a plane with him and Timothy, but they promptly attempt to toss her from it with a defective parachute. Merriwether catches up with them in another plane and the two pilots have a duel in the air, trying to force the other down into the sea. Merriwether shoots Campbell dead. When Timothy produces a gun, Fathom fights him for it, leading to Timothy falling out of the plane. Now revealed as the good guy, Merriwether, with the leverage of Fathom's passport which he has, persuades her—after she passes over the villa and tosses the Fire Dragon down to Jo-May Soon to return it to China—to meet him later in a bar. ==Cast==