Archer and his gang have come to Gotham City, winning the public's favor with their Robin Hood style deeds of stealing from the rich to give to the poor. Batman and Robin set out to discover the location of their hideout and stop these villains, only to find themselves caught by a trap in the Archer's lair.
Batman and Robin escape their previous peril and are back in action seeking to foil the Archer and his gang. After pulling off a counterfeit job, the villains head for their boat, planning to take their loot safely to Switzerland. The Dynamic Duo set off in the Bat boat to try to stop their escape.
Catwoman makes her return known with a string of robberies. Hoping to lure her into a trap, Batman plants a news blurb giving the whereabouts of a rare canary, but Catwoman is tipped off and arrives prepared. Batman and Robin follow a lead to Catwoman's hideout, the Pink Sandbox, but soon discover that this villain has been waiting for them.
Catwoman disguises herself as a wealthy recluse - Minerva Matthews - to exchange a quarter million dollars for two Stradivarius violins. Once the instruments are safely in her hands, the villain reveals her true identity and demands the cash back. But Catwoman is surprised to learn that her business partner - Zubin Zucchini - is also not who he appears to be.
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.
Failing to destroy Batman and Robin, the Minstrel enacts "Plan High C." He shakes the building of the Gotham City Exchange, and promises to send it crumbling down if his demands are not met in one hour. Batman assumes cutting off the building's power will thwart the villain, but when that plan fails, it's up to the Dynamic Duo to track down the Minstrel before it's too late.
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.
Using resurrected scarab beetles, King Tut concocts an ancient mind control potion, abu raubu simbu tu. Chief O'Hara is the first under his spell, followed shortly by Commissioner Gordon, and when Batman himself is tricked into taking the drug, Tut's plan to control all of Gotham City by tainting the water supply seems close to succeeding.
Ma Parker and her delinquent children are pulling off a crime wave in Gotham City. Batman and Robin round up the gang one by one, but when the arrests seem all too easy, the Dynamic Duo suspect something else more sinister may be up.
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.
After a robbery aided by a rigged timepiece, Batman and Robin deduce the Clock King must be in Gotham City. Disguised as a pop art expert, the villain brings his latest masterpiece to the Parkhurst Gallery. But everyone is surprised when the sculpture turns out to be more than just a piece of art, and the Clock King makes off with a valuable time-related painting. Batman and Robin follow a clue to the villain's hideout, unaware that a trap awaits them.
Aunt Harriet purchases a clock as a birthday present for Bruce Wayne, unaware that it is a plant by the Clock King. But when the villain learns that a control switch meant for his final caper has been errantly placed on the timepiece, he breaks into Wayne Manor to retrieve it, nabbing some valuable watches in the meantime. Batman and Robin shortly deduce his master plan and race to stop him.
Egghead steals the Gotham City charter. He finds a loophole that could give him control of Gotham City if descendants of the original founding families (including Bruce Wayne) do not pay nine raccoon pelts to Chief Screaming Chicken on time. Not only is he interested in stopping the payment, but Egghead believes he also has a lead on Batman's true identity.
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.
Chandell, the musical virtuoso, visits Gotham City for a piano concert. But unknown to the public, Chandell is being blackmailed into a life of crime by his twin brother Harry, who retains most of the profits. Chandell intends to buy off Harry forever, and he knows just where to get the funds - from the Wayne family fortune. With Batman and Robin out of town, he suspects the robbery will be a piece of cake. However, Batman has been listening to Chandell's concert remotely, and after detecting an anomalous chord, summons Robin back to Wayne Manor to investigate.
Batman and Robin escape Chandell's trap. Once back in the Batcave, they deduce his plan to get the Wayne family fortune by killing Bruce Wayne and Dick Grayson, then marrying the rightful heir, Aunt Harriet. In order to trap the villain, Bruce and Dick fake their own deaths. However, Harry has also figured out his brother Chandell's scheme, and desiring the Wayne fortune for himself, concocts a plan to masquerade as his twin brother.
The Penguin appears to have gone straight. (Evidently the citizens of Gotham City have short memories; he tried the same trick in season one.) Not only that, he has emerged as the leading contender for mayor of Gotham City, thanks to a little-known provision of the city charter that permits felons to run for elective office. Mayor Linseed, facing almost certain defeat, convinces Batman to run for mayor. This displeases the Penguin, who doesn't want to leave anything to chance. He lures Batman and Robin into a trap and, by episode's end, things don't look good for the ...
After escaping the Penguin's death trap, Batman still faces an uphill run to defeat the Penguin in the race for mayor of Gotham City. The Feathered Fiend uses every dirty trick he can think of to ruin Batman's reputation. But the Penguin discovers opinion polls aren't what they are cracked up to be. Still, Batman and Robin will need to subdue the villain before his plot can be put down once and for all.
Mr. Freeze is in town, and has begun a new cold wave of terror. He launches "Operation Hate Batman," framing the Caped Crusader as taking a bribe and dressing his own henchmen as Batman and Robin. As the negative press mounts, Mr. Freeze works on his plan to turn the Dynamic Duo into human Frosty Freezies.
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 pulls off a string of key-related pranks throughout Gotham City, then with his magic box, proceeds to snatch a priceless jeweled key right under the noses of Batman and Robin. The Dynamic Duo wise up to his ways and thwart him at their next encounter. However, the Joker has more devious plans to do away with them both before his final caper.
After a reworking, the Joker's magic box holds the power to alter time forward and backward. Batman and Robin learn of his plans to pollute the city water supply, and butler Alfred is sent to take over as security guard at the water works. Alfred nabs the box upon the villain's arrival, freezing him and his cronies in time, but unwittingly commits a dangerous error when he removes the box's key.
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.
Hoping to obtain the Batcave's bat-diamond, Marsha searches for a new potion to use on the Caped Crusaders. Batman and Robin do some searching of their own and arrive at the criminal's hideout. But after Marsha douses them with her concoctions, the villainess seems to have a unique bargaining chip - two tiny caped toads - with which to gain Commissioner Gordon's help in locating the Batcave.
Shame is back, and is using stolen vehicle parts to assemble a truck so fast even the Batmobile won't be able to catch him. Bruce Wayne tricks him into stealing his limo, which he (as Batman) and Robin use to track down his hideout. But the villain gains the upper hand in the ensuing fight, and the Dynamic Duo find themselves staked to the ground in the path of a cattle stampede.
With his special truck finished, Shame goes to work on his final caper - the theft of four prize cattle worth over one million dollars. Batman and Robin deduce his plan, but realize they are too late to stop him and too slow to catch him. With little left to go on, the Dynamic Duo employ their "bat-logic" to try to figure out his next move.
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.
Attempting to save Chief O'Hara from drowning inside a metal trunk, Batman and Robin find themselves under fire from the Penguin's henchmen. Batman instructs Alfred to pose as famous forger Quill-Pen Quertch (complete with false fingerprints), but the Penguin recognizes Alfred as soon as he puts on his glasses. The evil Bird-man and his cronies then visit stately Wayne manor brandishing a giant Butler-pie.
The Catwoman "steals" the voice of a television talk-show host in the middle of an interview with Bruce Wayne. She plants clues to suggest either the Joker, Riddler or Penguin may have committed the crime. In the meantime, she has fooled Commissioner Gordon into thinking she has gone straight. She makes her first mistake when she masquerades as Miss Klutz, a dance instructor visiting Wayne Manor. Allergic to dogwood, she sneezes and gives herself away. Her next target is to "steal" the voices of British singers Chad and Jeremy. Batman and Robin eventually track her to...
Batman and Robin escape Catwoman's trap by hitting the precise note needed to shatter the glass chamber in which they're prisoners. They quickly get on the trail of Catwoman. The feminine feline criminal eventually "steals" the voices of Chad and Jeremy, Commissioner Gordon and talk-show host Allen Stephens. She blackmails the British government, which faces the lost of revenue from the taxes on Chad and Jeremy's performances. Batman and Robin eventually capture Catwoman and her gang, but not before Batman and Catwoman express obvious affection for each other.
The Puzzler, a villain with a fondness for both Shakespeare and aviation, indicates he is after the fortunes of Artemus Knab. He convinces the billionaire to invest in his puzzle balloon business, but when the Dynamic Duo find that Knab seems too intelligent to fall for a phony scheme, they look deeper for the criminal's true intentions. Their search leads them to Knab's airplane monopoly, but unknown to them, the Puzzler has plans to halt their investigation - permanently.
The Puzzler continues with his plan to hijack Artemus Knab's new airplane, the Retsoor, all the while leaving puzzles behind for Batman and Robin to ponder. He familiarizes himself with the jet's designs, then prepares to fly his prize to a foreign country where he will hold it for ransom. But the Dynamic Duo have an easier time with his clues than he expected, resulting in a climactic confrontation at the airplane hanger.
Catwoman and the Sandman have teamed up, and they're after the fortunes of J. Pauline Spaghetti, a rich insomniac. Catwoman pulls a publicity stunt, getting the Sandman (under the guise of "Dr. Somnambula") an invitation to Spaghetti's penthouse - and her financial records. Batman and Robin investigate the situation, but soon find themselves trapped by the criminals.
Though Batman escapes the Sandman's trap, Robin is left to wander in a deadly maze. A clue leads Batman to Catwoman's lair, where he informs her of Sandman's plans to elope with J. Pauline Spaghetti and keep her fortunes to himself. Enraged by the Sandman's trickery, Catwoman sets out after him. Batman, with the now-rescued Robin, also follows, and the group meet up at Spaghetti's old deserted pasta factory.
The Mad Hatter has escaped from prison, and is on a quest to add Batman's cowl to his collection of hats. He attends Gotham City's annual headdress ball disguised as the Three-tailed Pasha Of Panchagorum, and snatches a large ruby off of columnist Hattie Hatfield's headdress. The villain makes a getaway, but not before turning Batman's cowl pink with a radioactive spray. He trails Batman to the Atomic Energy Laboratory, knowing he will have a chance to snatch his cowl when it is removed for decontamination.
What appear to be the skeletons of Batman and Robin are found at Gotham City's Atomic Energy Laboratory, where the Mad Hatter left them to irradiate. Word of their demise spreads like wildfire. With the world busy mourning its loss, the Mad Hatter has no trouble snatching a valuable ruby from the Golden Buddha of Bergama's forehead. However, when rumor spreads that Batman and Robin are still alive, the Mad Hatter's scheme appears jeopardized.
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.
Batman and Robin narrowly escape the Joker's death trap and quickly get back on the villain's trail. The villain runs the Gothham City Police Department ragged with his crimes based on the zodiac. Meanwhile, Venus, the Joker's accomplice, warms to Batman. Eventually, the Dynamic Duo again corner the Joker. But, once more, the heroes are captured. Now, Batman, Robin and Venus are chained in a shallow pool with a giant clam. The clam swallows Robin and Batman and Venus will be next on its menu.
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 ...
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.
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 ...
As a front for his next crime wave, the Penguin forms a motion picture company. He teams up with Marsha, Queen of Diamonds, and gets Batman and Robin to take part in his movie. Marsha attempts to put Batman under her spell with drugged lipstick during the love scene, and filming at the Gotham City Museum of Antiquities turns out to be a good cover for the Penguin to snatch some ancient armor. Moreover, when the fight scene turns out to be all too real, the Dynamic Duo are captured and tied to a giant catapult about to be sprung.
In order to keep a close eye on the Penguin (and hopefully locate the stolen chain mail armor), Batman and Robin rejoin Penguin's movie efforts. The next part of his film is to take place in medieval times. Therefore, Penguin has the Dynamic Duo dress in armor suits, but only to trap them with a giant magnet while he snatches top-secret papers from the Hexagon. Batman and Robin free themselves and follow the villain, but after a losing battle with him, the Penguin has them hauled off as scrap metal to be crushed.
Batman and Robin get back on the Penguin and Marsha, Queen of Diamonds', trail. Several escaped lizards lead them to the villains' hideout, where they find the stolen chain mail suits. Remembering an earlier clue from the Penguin, they head to the federal subtreasury to find that the Penguin, Marsha, and their cronies have broken into a vault containing ten million dollars in gold bullion. The Dynamic Duo shut the vault door on the criminals and try to prepare for every breakout scenario, but the Penguin has a daring plan of escape that no one could have counted on.
During a party for Batman's crime-fighting anniversary, the Riddler appears and nabs a golden calf filled with money for charity. His next target is the Gotham City Bank, which he floods for an underwater robbery. Although Batman and Robin try to stop him, the villain makes a clean getaway, leaving only a final riddle that stumps the Caped Crusaders. They discover all too late that his next move is an attempt to destroy them, this time with deadly quicksand disguised as strawberry icing atop a giant cake.
After two more robberies, the Riddler has enough money to purchase Professor Charm's Demolecularizer. He demonstrates his weapon on a park statue, then issues an ultimatum - if all criminal statutes are not rescinded within two hours, he will begin dissolving every building in Gotham City. He rigs his device to automatically fire on police headquarters if his demands are not met. The city's only hope is Batman, who believes he has a plan to counteract the device.
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 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.
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.
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.
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 ...
Colonel Gumm moves out of the Pink Chip Stamps Factory, taking its owner Pinky Pinkston along as a hostage. A message hidden by Miss Pinkston in a bowl of alphabet soup directs Batman and Robin to the International Stamp Exhibition. Though the Green Hornet and Kato will be attending to try to expose Colonel Gumm, Batman and Robin believe they are out for personal profit. The misunderstanding has the two sets of crime fighters fighting each other while the real criminal nearly makes off with the exhibition's rare and valuable stamps.
After a blow to the head, Yale's Egyptology professor once again believes he is King Tut. He mistakes Bruce Wayne's friend Lisa for Queen Cleopatra, and kidnaps her so he can bring her to Egypt as his bride. Batman and Robin soon locate Tut's hideout, thanks to a hidden tracking device. But soon after entering, they are captured by Tut's cronies, and Batman is submerged in a sarcophagus under five feet of water.
Though Batman escapes his watery trap, Robin is left in the hands of King Tut. The deluded villain still believes that Lisa Carson is really Queen Cleopatra, and calls Lisa's father to demand a ransom of $8,300,487.12, the mortgage on the Pyramids. Using the Jolly Jackson radio show to communicate, Tut negotiates the terms of payment with Batman. However, the villain most likely intends to keep both the money and Lisa, and has further plans to fry the Caped Crusaders in his royal boiling oil.
The Black Widow uses her cerebrum short-circuiting device to rob bank after bank in Gotham City. Batman and Robin soon catch up with her, but actually capturing the villainess proves harder than expected. Despite her nerve paralyzer spray, and two remote-control dummies that try to throw the Dynamic Duo off course, they finally make it inside the Black Widow's lair. But soon after entering, they are trapped in a giant web with two deadly black widow spiders.
The Black Widow adjusts her cerebrum short-circuiting device to successfully alter Batman's brain. With Batman powerless to resist, and Robin captured, she disguises herself as the Boy Wonder and brings along a dummy Batman to rob another bank. Commissioner Gordon initially believes Batman is setting a trap for the villainess. But when word comes of the successful robbery, the commissioner puts out an all-points bulletin to bring in the Caped Crusaders dead or alive.
The Joker appears in an art gallery and defaces the paintings with paint-spraying guns. But instead of being horrified at his alterations, the Joker's work is praised as "art". After more success at an international art competition, the Joker founds his own art school. But Batman and Robin suspect he has a more sinister purpose in mind when he enrolls only wealthy millionaires.
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.
Mr. Freeze is back in town, and has plans to build an icy weapon that will have the world at his control. With help from Glacia Glaze, the renowned ice skater, he captures Professor Isaacson and tries to extract the secret formula for instant ice from him. Mr. Freeze then sends his trained seal Isolde to Police Headquarters with a note, demanding Batman deliver a ransom in exchange for the professor. But the frosty villain not only plans to keep the money and the professor, but to terminate the Dynamic Duo in the process.
Back in his iceberg headquarters, Mr. Freeze persuades the kidnapped Professor Isaacson to build him a thermodynamic ice ray beam. He issues an ultimatum that he will begin freezing the entire country if his demands are not met, then gives a demonstration of his weapon. As the villain works out just what his demands are, Batman and Robin track his seal, Isolde, through an ice-packed Gotham Harbor to locate the villain's hideout.