The Dynamic Duo fights crime in Gotham City, encountering the classic Batman rogues gallery as well as some original villains. Complicating matters is Bat-Mite, a well meaning imp from another dimension called Ergo, who considers himself Batman's biggest fan.
The Joker steals an experimental car, disguising himself as the inventor, but without his knowledge of the car's weakness.
Bruce Wayne's college friend, who became the first astronaut to fly a solo Moon mission, comes back with a secret.
Batgirl makes a surprise appearance at the debut of a new machine, that changes trash into fine fabrics.
Sweet Tooth plans to ruin children's health by turning Gotham City's water supply into chocolate syrup.
An underwater villain keeps a trained shark to carry out his weapons schemes.
Electro intends to shrink Batman and Robin in order to help him steal government secrets.
The Penguin opens a crime school, where young crooks finish with dishonors.
A shapeshifting villain plans to shut down Gotham City's new lunar/solar collector.
The Joker plans to get revenge on Batman by giving him a series of clues linked to his crimes.
Mr. Freeze and his henchman, Professor Frost, plan to steal the N-1000 (a superfast submarine) to pull of the crime of the century.
Clayface poses as Batman and forces a circus acrobat to pose as Robin in order to abduct an Arab oil minister.
During a cold snap, Catwoman and Clayface join forces to steal oil; a TV newscaster named Boyd Baxter seeks to show up Batman.
In order to win a criminals' election against Joker, Penguin invents the "Crime Slime," which can turn people into criminals.
A criminal from Bat-Mite's home dimension comes to Earth, enlisting Batman's enemies to keep the Caped Crusaders busy while he steals America's nuclear power plants.
Batman and Robin, the villains and Bat-Mite follow Zarbor back to Ergo, hoping to foil his takeover plans and recover the stolen nuclear plants.
Zarbor escapes jail in Ergo and returns to Earth, planning to become its ruler.
