Crooks have constructed a small mobile town. They use it as a speed trap to snare money from unsuspecting motorists. For bigger game, they advertise fifty cent steaks and free coffee to hijack trucks carrying valuable merchandise. After two hijackings, Lois Lane comes upon the "town" and is captured. Now, Clark Kent, Jimmy Olsen and Inspector Bill Henderson are trying to track her down. After they, too, are incarcerated, Clark turns into Superman to shut down the criminal operation.
—Bill Koenig