Scooby and the gang find an abandoned farmhouse after running out of gas; but the farmer tries to run them off with a shotgun, believing them to be reporters. Ever since witnesses have reported a mysterious spacecraft nearby, the newspaper men have been pestering him. They especially want to know about the glowing footprints all around the farmhouse--and the glowing, ghostly spaceman who has been making them. The gang has found another mystery; and it takes them to an abandoned airfield. There they see the spaceman--and hear the hideous cackling from his skull-like head--for themselves. A newspaper, fresh food and a newly fueled jeep are among the many clues that lead them to a solution; but a wind tunnel will blow the decisive clue right before their eyes.