Four hot rods have been stolen by thieves who intend to strip the cars for parts and accessories. Investigating, Friday (Jack Webb) and Smith (Ben Alexander) cannot help but notice that three of the four missing cars had been entered in the same race just before their disappearance. As in the case of the earlier episode "The Big Rod", the two detectives are assisted in their efforts to track down the criminals by members of the National Hot Rod Association. ~ Hal Erickson, Rovi