Batman
S03E20 Penguin's Clean Sweep
The Penguin contaminates the ink at the U.S. Mint with the Lygerian Sleeping Sickness. As news of the tainted currency spreads, Gotham City residents dump their cash into the streets, unwittingly filling Penguin's coffers. However, when Bruce Wayne disseminates information about the infected bills globally, the Penguin discovers that his ill-gotten fortune is now worthless. Enraged, he threatens to unleash a more sinister scheme if the warning isn’t revoked.
Season 3 Episodes
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Enter Batgirl, Exit Penguin
Ring Around the Riddler
The Wail of the Siren
The Sport of Penguins
A Horse of Another Color
The Unkindest Tut of All
Louie the Lilac
The Ogg and I
How to Hatch a Dinosaur
Surf's Up! Joker's Under!
The Londinium Larcenies
The Foggiest Notion
The Bloody Tower
Catwoman's Dressed to Kill
The Ogg Couple
The Funny Feline Felonies
The Joke's on Catwoman
Louie's Lethal Lilac Time
Nora Clavicle and the Ladies' Crime Club
Penguin's Clean Sweep
The Great Escape
The Great Train Robbery
I'll Be a Mummy's Uncle
The Joker's Flying Saucer
The Entrancing Dr. Cassandra
Minerva, Mayhem and Millionaires