Mysterious Doctor Satan (1940)

aka: Doctor Satan's Robot

A mad scientist named Dr. Satan (Edward Ciannelli) plots to steal key pieces of technology to enable him to build an army of robots, based on his prototype, to conquer America. The only thing standing in his way is Bob Wayne (Robert Wilcox), who fights Satan as the enigmatic Copperhead.

15 chapter serial, 2 VHS or DVD-R set.