The Riddler leaves a trail of riddles for Batman to save Robin, who he has been using as a stuntman in his films.
The Riddler and his cronies masquerade as Charlie Chaplin and The Keystone Cops to nab box-office receipts at a silent film festival.
A gunfighter with a hook for a hand blames Slade for his injury and hires a young gun to exact revenge.
Dobie falls for young trapeze artist named Aphrodite Millican.