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.
This long-running series follows the adventures of a team of lifeguards on the crowded beaches of Los Angeles County. Veteran lifeguard Mitch Buchannon watches over the younger lifeguards that come and go with each passing season as they keep the beaches safe for vacationers. Frequently he must take action to save them from the raging seas and from the raging tempers that sometimes flare up between the young guards in this stressful job.