Toni discovers his new friend, a talented free-diver, is being forced to help dangerous smugglers steal national treasures from an underwater cave.Toni discovers his new friend, a talented free-diver, is being forced to help dangerous smugglers steal national treasures from an underwater cave.Toni discovers his new friend, a talented free-diver, is being forced to help dangerous smugglers steal national treasures from an underwater cave.