

Bela Lugosi builds killer robots in his basement and somehow that's NOT the weirdest part.
A mad scientist attempts to rule the world by creating various elaborate inventions.
Acting
Bela Lugosi's hypnotic glare could power actual death rays.
Practical Effects
The 'invisible' robot suit is gloriously janky genius.
Direction
Beebe and Goodkind invented the template for Saturday morning serials.
Director
Saul A. Goodkind
Trivia, insights & behind the scenes
Lugosi filmed this during his Universal Dracula contract disputes—he needed the money badly.
This serial directly inspired 1960s Batman's cliffhanger structure and campy villain monologues.