Batman avoids a public unmasking but is unable to bring in the Joker, thanks to the villain's utility belt. Eventually, Batman and Robin are captured by the Joker's gang. But the Joker doesn't know a showdown with the Dynamic Duo awaits.
Dr. Shivel aka Mr. Freeze has returned and is seeking revenge on Batman, who accidentally spilled a freeze solution on him, being forced to live in a -50 climate. He is committing crimes involving diamonds, or "ice," in different forms. He freezes the duo, who look like goners.
Jervis Tetsch, aka the Mad Hatter, is abducting all the jurors who convicted him of a previous crime wave. He is also taking their hats. His final target is none other than Batman, who provided the key testimony in the Mad Hatter's trial. Batman and Robin have the Mad Hatter and his gang cornered but the criminal mastermind manages to encase the Caped Crusader in plaster of Paris.
Batman, thanks to superior breath control, is able to escape the plaster of Paris in which he was encased. Despite this, the Mad Hatter is still at large. Eventually, Batman and Robin again face off against the Mad Hatter at his criminal lair. Things look bad, but the Dyamic Duo manage to triumph.
Alfred contacts Batman by radio from the Batcave. Batman instructs the butler to short circuit a communications device the hero has on his wrist. This enable Batman to get free of his bonds. He and Robin get free just before they would be run over by a subway train. The Dynamic Duo resume their pursuit of False Face, which ends up at an old movie studio.
Catwoman initiates a series of thefts that cause Commissioner Gordon to summon Batman and Robin. But the importance of the crimes go beyond the taking of the objects involved. The Dynamic Duo eventually find Catwoman's lair. But Robin is whisked away while Batman is given a choice between two doors. If he picks the right door, he'll find Catwoman. If he picks the wrong one, he'll face certain doom. The hero makes the wrong selection and is about to be attacked by a tiger.
Batman evades the attacking tiger thanks to his utility belt. First, he scales the wall. Then, he uses a sonic device "to split the tiger's skull," as narrator William Dozier informs us. The hero still has to free Robin, who is facing a separate death trap. Once that task is completed, the Dynamic Duo are back on Catwoman's trail. It turns out the feline villain is after the lost treasure of Captain Manx, which is in a remote spot outside of Gotham City.
Taking advantage of the Riddler's mistaken belief that they were killed escaping his deathtrap, the Dynamic Duo must stop the villain from stealing a treasure of Incan jewels that would mean destroying an archaeological treasure as well.
A former academic who thinks he is really King Tut has returned. Batman and Robin seek his capture. A twist occurs, however, when King Tut's gang kidnaps Bruce Wayne. They are taking the millionaire in an ambulance. As Bruce tries to get free, the rear doors of the ambulance open and Bruce rides a cart toward a cliff.
Bruce frees himself just before the cart he is riding goes over a cliff. As Batman, he works to bring King Tut to justice. But the hero is captured by King Tut instead. Batman is then tortured as King Tut drops a pebble on his head at a time. Robin works to track Batman in time.
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.
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.
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.
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.