The Black Demon

Nixon Oil company inspector Paul Sturges is sent to a small Mexican town in Baja California, to check on an offshore oil rig called El Diamante while he brings his wife Ines and their two children, Audrey and Tommy, along for a vacation. Upon arrival, the family finds the town in ruins. The remaining locals living in the town are suspicious and unfriendly, and fear turns to anger when they learn that Paul works for the company that commissioned the oil rig. Paul, seeking to see if the rig is worth revitalizing or decommissioning, takes a boat to the rig. He arrives to find the rig, dilapidated, hazardous and surrounded by an oil spill, crewed only by two remaining rig workers, Chato and Junior, along with their pet chihuahua. Eventually, after being harassed and stalked by the angry locals, Paul's family decides to follow in another boat after Ines pays the boat's owner to take them to the rig. As the boat arrives, Chato and Junior begin to panic and fire flares as a 60 ft (18 m), 45.3 t (100,000 lb) megalodon shark ("El Demonio Negro", or The Black Demon) prowling the waters begins to chase the boat.