Sam Slade hunts robots - and he's the best there is at catching them! When Sam's hired by city councillor B. J. Armit, the case is strange from the start - Armit's a robot himself...who wants to know where his real body is! But no sooner is Slade hired than he's in jail, after an army of nine-inch-high robots kill Armit! But what's the connection to the _robot union_ who want Sam out of business? And who the heck is Hoagy, the crazy robot who's apprenticed himself to the best robo-hunter in the business?