 Scooby and the gang help an oceanographer recover ancient golden relics from a wrecked ship at the bottom of the sea. But it seems the ghost of the ship s captain, joined by two sea monsters, haunts the wreckage and wants to scare off any trespassers. . . . Blue Falcon and his inept mechanical sidekick, Dynomutt the Dog Wonder, battle the Red Vulture, who has perfected a method of stealing cargo from planes in mid-air.