Jimmy Olsen [Elastic Lad]; Superman; "Silky" Smith [also as Prof. Bolton]
When Jimmy accidentally exposes himself to a green substance from space, his entire body becomes like rubber. Hiding out as Elastic Lad in a freak show, Jimmy falls in with criminals who use his abilities to carry out their plots, but Jimmy turns the tables on them before his elastic abilities fade.
Jimmy interviews a collector of famous men's hats - Napoleon, Robin Hood, Fleming of the London Bobbies - then pranks him that the hats give the wearer the person's abilities. Soon Jimmy is tracking an escape lion like Eric Danton and shooting it with a toy bow, yanking an engine out of a crooks' car like Houdini, and rowing after bandits like Captain Alan who defeated Blackbeard - all with Superman's unseen help! He even picks up Clark Kent's old hat to become a world-famous reporter!