
Set during Bruce Wayne's early years as the Batman, following his initial period of battling organized crime. He hones his skills with the assistance of his butler, Alfred Pennyworth. Bruce is introduced to Alfred's goddaughter, Tatsu Yamashiro. Tatsu is a martial arts swordsmaster hired to act as Bruce's bodyguard, but also recruited to act as a superhero partner to Batman.

Batman stops two vigilantes from taking their revenge over a shady land deal. An aging Alfred hires his replacement: a female bodyguard named Katana.

A new female villain, Magpie, kidnaps Batman, who must decipher her multiple personality disorder in order to outsmart her.

Bruce puts Katana through a series of tests to prove her loyalty; meanwhile Batman battles Anarky.

Introducing the prototype of his newest product to the entire world – the Ion Cortex, a powerful device capable of solving the world’s energy crisis – Bruce Wayne hires brilliant scientist Dr. Jason Burr to work on the project. The announcement also draws the attention of one of the most dangerous groups in the world – the League of Assassins. When one of the League’s deadly assassins, Silver Monkey, attacks Wayne Manor to kidnap Dr. Burr while Batman’s in Gotham, it’s up to Alfred and Katana to keep the assassin at bay until Batman’s return.

A collection of new statues pops up around the Streets of Gotham and Batman and Lt. Gordon must work together to save the people trapped inside before the Notrorious Humphrey Dumpler (AKA Humpty Dumpty) destroys them.

Batman tries to save Rex Mason from transforming into the villain Metamorpho after he mistakenly ingests a highly dose of toxic chemicals.

Bethanie Ravencroft lures Bruce to the Argus Club in an attempt to steal the Soultaker Sword; Katana rescues him and Bruce reveals that he is Batman.

Lt. Gordon asks for Batman’s help to recover his kidnapped daughter Barbara; Batman and Katana find a rhythm working together to save her.

Katana saves Batman from Cypher , a part robot villain with the powers of mind control who is seeking the Ion Cortex.

Batman and Katana are in a race against time to escape a chemical weapons facility before it’s destroyed.
Created by: Sam Register, Glen Murakami
Available on: Cartoon Network, Adult Swim