A horrifying villain named Scarecrow spreads fear gas and wreaks havoc at Gotham State University.

The Joker employs a lethal mind-altering laughing gas to transform the citizens of Gotham into total fools.

When men begin disappearing at a bowery, Bruce Wayne decides to go undercover as a worker. He loses his memory after he is attacked, kidnapped and forced to work in a mining camp.

A confused robot that believes he is Batman causes problems for the real Dark Knight.