Batman, summoning all the strength he can muster, breaks his chains and frees Robin from the giant clam. The heroes arrange for the Joker's former confederate, Venus, to stay at an apartment while they figure out what to do next. Meanwhile, the Joker has freed the Penguin from Gotham State Prison to continue their crime wave. The Joker tricks Venus into asking Batman to take her to the Batcave. The Dynamic Duo take her to their base of operations (but only after making her fall asleep first). When they arrive, the Joker, Penguin and assorted thugs are revealed to be hiding in the Batmobile's trunk. Batman, however, anticipated this and none of the criminals know where the Batcave is. A figure erupts, with Batman and Robin finally ending the zodiac crimes.

Counterfeit money is being distributed by respectable citizens in Gotham City. Batman and Robin investigate, and find one of the Joker's lifelike robots substituting for a bank teller. They are certain who is behind the crime. But to get actual proof, Batman plans to visit the villain as Bruce Wayne and trick him into disclosing his operation. When his scheme suddenly backfires, it appears he will instead have to appoint the Joker as Vice Chairman of the Gotham National Bank.

The Joker persuades wealthy heiress Baby Jane Towser to join him in his artistic capers. Aided by his new accomplice, the Joker easily clears out a wing of the Gotham City Museum to make room for his latest "masterpiece" - pieces of a broken table. But the laughing criminal has plans for the priceless collection of paintings that once filled the room.

When the lease payment for Gotham City fails to be made on time, possession of the city falls into the hands of Egghead. Chaos ensues as the villain fires Commissioner Gordon and bans the Dynamic Duo from city limits. While the criminal underworld enjoys free reign, Batman and Robin search the city charter's fine print for a solution.

Batman agrees to let the Catwoman drug him. But he appears to have a headache and the Catwoman permits him to take an aspirin. After the drug is administered, Batman appears to assist Catwoman on her crime wave. However, the police receive anonymous telephone calls that enable them to pick up members of Catwoman's gang, including the drugged Robin. Meanwhile, the Gotham City police try to trace the hot line to the Batcave. Batman is there with Catwoman. He uses a device that foils the trace. Eventually, Batman reveals he hadn't taken an aspirin but his universal drug antidote that prevented the drug from working. Catwoman tries to flee on top of a warehouse near the Gotham River. Batman is in pursuit and corners her. But, unwilling to go straight, she falls into the river. Has she lost her life, or just one of her nine lives?

Catwoman goes ahead with her scheme to steal several Batagonian Cat's Eye opals, but she has trouble finding someone to fence them since such rare stones would be easily spotted. With little recourse left, she decides to turn them in for the reward money. It seems like the perfect job for her acquaintance, Freddy the Fence. But when he notices that the gems are fakes, Catwoman realizes she has been tricked by Batman and vows to get revenge on the Caped Crusader once and for all.

King Tut has relapsed into his kingly ways, this time showing a marked interest in scarab beetles and apothecary potions. Robin infiltrates their hideout to discover their true intentions, relaying what he hears to Batman, but their plan is put in jeopardy when Robin's presence is detected.

"Enter Batgirl, Exit Penguin", is the first episode of Season 3 of the Batman television series', first aired on ABC September 14, 1967 as its ninety-fifth episode. It guest starred Burgess Meredith as The Penguin, and also was the first appearance of Yvonne Craig as Police Commissioner Gordon's daughter, Barbara Gordon, a.k.a. Batgirl.

Commissioner Gordon appears to have been assassinated during the opening of a new bridge. A copy of Hemingway's 'For Whom The Bell Tolls' nearly blows up the Batmobile. Both incidents are clues to the Bookworm's latest scheme. Batman and Robin interrogate The Bookworm's henchwoman Miss Limpet but deduce she is leading them into a trap. And while Batman intends to walk right into it, it is Robin who falls first.

Marsha, the Queen of Diamonds, is after the giant diamond that powers the Batcomputer. With her love darts, she puts both Commissioner Gordon and Chief O'Hara under her spell (and into her custody). When the Dynamic Duo show up, they too are injected with her love potion, and Batman must agree to marry Marsha if he ever wants his friends to be returned.

The Joker is now Vice Chairman of the Gotham National Bank, due to an unsuccessful plan of Batman's. He installs his robots as tellers, and despite his criminal past, seems to be running things in perfect order. The Dynamic Duo realize they will have to trick him into making a mistake in order to remove him. They go to work on a plan to gain control of his robots. But that plan is jeopardized when, due to an odd turn of events, Batman's true identity Bruce Wayne is declared mentally ill and hauled off in a straight-jacket.

With plans to build an indestructible empire, King Tut goes in search of Nilanium, the world's strongest metal. But with the only known deposit lying directly beneath Wayne Manor, Tut's tunneling soon leads him to the discovery of a lifetime - the Batcave itself. With their secret identities in jeopardy, Batman and Robin race to stop him before his find is leaked to the world.

Charlie Chaplin and the Keystone Kops raid the till at the newly opened Gotham movie theater. The culprits turn out to be 'The Riddler' and his gang in disguise. They lead the Dynamic Duo on a crime spree chase from Mother Gatham's Bakery, past the Gotham Library, and into a Temperance Party. At each of these events, the villains are accompanied by German film maker Van Bloheim who captures everything on celluloid.

The Minstrel, a villain with both musical talent and electronic ingenuity, is wrecking havoc with the Gotham City Exchange in an attempt to blackmail the exchange members. When he soon realizes Batman and Robin are equally skilled with electronics, he deems them a threat to his plan and sets a trap for their demise.

The press continues to attack Batman and Robin, thanks to framing by Mr. Freeze. As public animosity mounts, the Dynamic Duo decide to hang up their capes for the time being. But when Mr. Freeze demands the impossible sum of one billion dollars, or else he will cover all of Gotham City with ice, the Caped Crusaders feel compelled to go back into action to foil the frosty villain.

The Joker and the Penguin team up on a crime wave based on signs of the zodiac. The pair, aided and abetted by a woman known as Venus, keep Batman and Robin on the run. The Dynamic Duo manage to capture the Penguin but the Joker remains on the loose. Batman and Robin figure the Joker's next caper will take place at a museum and lay a trap. But the heroes are captured instead. Now, Batman and Robin face almost certain death; the heroes are to be crushed beneath a giant asteroid on display at the museum.

The Catwoman manages to drug Robin. The junior member of the Dynamic Duo is now the Catwoman's mindless slave. Batman is on the trail of the sultry villain, but he's hampered by the fact he can't harm his partner. Eventually, Batman is trapped by the Catwoman. He's in a giant trap and Robin is cutting the rope that will cause a giant mouse trap to snap on Batman. The Catwoman offers Batman a choice -- die by Robin's hand or agree to be subjected to the same drug.

Catwoman is released from prison, and claiming she wants to enrich her education, enrolls at Gotham City University. She dresses one of her own henchmen as the Caped Crusader in order to frame him for a robbery. With Batman in jail, she goes ahead with her plan for a mass sit-in at Chimes Square. Catwoman is more than surprised when Batman himself shows up at the event. However, his efforts to expose the villainess are futile, and she prepares to terminate him and Robin in front of the whole crowd.

Penguin has opened a fancy restaurant called The Penguin's Nest. There every order has to be written down by the customers on a piece of paper. He then plans to get himself arrested and hand over the handwritten notes to a forger doing time by the name of Ballpoint Baxter. Suspecting a scheme, Batman urges the police not to send The Penguin back to his permanent cell. Unable to reach Ballpoint, The Penguin and his culinary cohorts escape from jail, taking Chief O'Hara along as a hostage.

The Green Hornet and Kato are in Gotham City to bust a counterfeiting stamp ring. Believed to be arch-criminals by nearly everyone, their midnight visit to Colonel Gumm at the Pink Chip Stamps Factory stirs alarm. Even Batman and Robin believe they are out for a piece of the action. Figuring the Green Hornet's goal must be the Gotham Gothic, a rare and valuable stamp, they trail him and Kato to the Pink Chip Stamps Factory. But when Colonel Gumm and his men make giant stamps out of the visiting crime fighters, it appears Batman and Robin will be doomed to the same fate.

Lorelei Circe, aka The Siren, launches a two part plan to become the richest and wickedest woman in Gotham City. First she puts Commissioner Gordon under her stunning spell and orders him to stow away in the Batmobile in order to find out the location of the Batcave as well as Batman & Robins secret identities. Secondly she entrances millionaire playboy Bruce Wayne and implores him to sign over all his wealth and belongings to her.

Batman manages to escape the Riddler's death trap. He and Robin decide to lay low until they can figure out the Riddler's caper. Meanwhile, the Riddler frees King Boris, who brings a gift to a major monument in Gotham City. It turns out the Riddler has substituted a bomb for King Boris's gift and he is demanding a ransom. The Riddler, though, overplays his hand, enabling Batman and Robin to capture the Riddler and his gang.

Batman saves Robin from the Wayne Memorial Clock Tower at the last possible Big Benjamin second. While they are busy in the Batcave, The Bookworm steals a priceless cookbook from stately Wayne Manor. He then lures the Dynamic Duo into an oversized cookbook on display in the middle of Gotham city and steals the Batmobile. Can Batman and Robin escape before their goose is cooked?

Now in charge of the Gotham State Pen, Ma Parker and her jailhouse full of criminal cohorts use it as their base of operations. No one suspects jailed prisoners of the crimes, but a clue picked up by Batman and Robin may lead them right to Ma's whereabouts.

The Joker decides to fight fire with fire against Batman with a utility belt of his own.