Batman Season 2 - Episode - 39

This episode features the first use of the "Batdrone," used to search Gotham for an unauthorized broadcast.

The Joker breaks the Penguin out of Gotham State Prison to help him complete his "Zodiac" themed crime spree. Their primary goal is to collect a $10 million ransom by threatening to turn Gotham City's water supply into jelly. Batman Season 2 - Episode 39

This was a rare instance of villains successfully entering the Batcave , though they failed to learn its secret location. This episode features the first use of the

The story picks up from the previous episode's cliffhanger, with the having trapped Batman in chains and Robin inside a giant, lethal clam. This was a rare instance of villains successfully

Batman manages to break free from his chains and uses his strength to pry open the giant clam, saving Robin just in time.

(in one of his earliest TV appearances) plays a delivery boy for the Penguin. Key Trivia