While Stephanie is training Cody in underwater search-and-rescue techniques, Cody finds a Spanish medallion. He has the medallion appraised and the shop owner offers Cody $3500 for it. But he doesn't accept it and is convinced that he will find more gold at the bottom of the ocean. He is convinced that a Spanish galleon is buried somewhere at the bottom of the ocean. He asks Stephanie for permission to go out searching. But Stephanie is concerned that his training will suffer if he does so. Anyway, she agrees to join him and search for the possible gold treasure. Meanwhile, a couple of drug-dealers named Lucas and Naomi has dropped a storage pod full with drugs nearby Cody's and Stephanie's diving area. They find the storage pod first and when Naomi and Lucas arrive, they try to kill Cody and Stephanie with spear guns. But Stephanie and Cody manage to reach the surface again. There they find Lucas who has left Naomi to die underwater. Cody goes down to rescue her even though he knows t (thetvdb.com)