The mysterious Professor returns for Doc Wackey's life, and uses Doc to create and test a super-speed formula. Wackey ends up with super speed, which he proceeds to dedicate to a life of crime! Midnight took the serum himself just to keep up with Doc, but it eventually wears off.; A Czech, an Austrian and a Pole escape from a concentration camp and join the underground as the Three Shadows, through whom the Marksman smuggled Nazi war plans to the British.; A little girl asks Black X to rescue her father who is being held by the Nazis behind enemy lines.; The Ray searches for a spy who has ferreted out plans for an allied invasion of Norway.; Rankin breaks up a counterfeiting ring that makes phony rationing coupons.; Chuck Lane asks that the toughest juvenile offender be paroled in his custody.; The Dean of Darkness tries to hold Carol Martin for ransom, not realizing she's Wildfire.; A trio of kidnappers find a little boy too much to handle.; A disgruntled zoo employee, lets the animals loose to get revenge on the director.