The appearance of an unearthly spacecraft and associated destruction and thefy caused by it, merits the attention of Captain Albright, who is assigned the duty of tracking down it's inhabitant from Pluto: Jagga, the Space Raider! He does, but after a tedious struggle, the villain makes good his escape.; Mudd decides to become an author of a book, and he creates a mythical hero called Sergeant Twilight, and ends up battling a villain called The Mad Maniac. He discovers, however, that the supposed villain is actually another book author involved in a publicity campaign for his own book!