Smugglers (of what is never shown, and my Spanish isn't good enough to understand if they told) are arriving on the beach and unloading big cardboard boxes .. Hijo del Diablo.. the masked undercover agent is on the trail.. working against El Patron the leader of the Smuggler gang. He manages to kill off quite a bit of the gang before the Navy shows up to sink the smugglers boats and arrest/kill the rest of the gang leaving ElPatron to deal with Hijo Del Diablo.. all ends well as Hijo unmasks to reveal he is... ahhh.. but that would be telling.. is it a surprise..? Yes.. sort of.. fun for the whole family.. no blood or nudity no profanity .. fights and shoot outs though.. Not a bad way to pass an hour and a half.