[3] In Gotham City during Bruce Wayne (voiced by Anthony Ruivivar)'s early years as Batman, following his initial period of battling organized crime.

Throughout the series, he hones his combative skills with the assistance of his butler Alfred Pennyworth (voiced by JB Blanc), who introduces Bruce to his goddaughter Tatsu Yamashiro (Sumalee Montano), a martial artist and swordmistress hired to act as his bodyguard, as well as Batman's partner under the codename of Katana.

Crime-fighting vigilante Batman teams up with swordmistress Katana and his ex-secret agent[5] butler Alfred Pennyworth to face the criminal underworld of Gotham, led by Anarky, Magpie, the League of Assassins (consisting of Ra's al Ghul, Lady Shiva, Silver Monkey, Cypher) Tobias Whale, Phosphorus Rex, Professor Pyg, Mister Toad, Key, Killer Croc, and Humpty Dumpty.

[10] In addition, initial announcements for the series were accompanied with promotional art unintended for public release, which depicted Alfred as a gun-toting butler fighting alongside Batman.

In response to fan criticism, series developer Glen Murakami acknowledged that the poster was an inaccurate representation of what the character's actual role would be; he elaborated that the poster was intended to be an action-themed shot that displayed the cast of characters, but felt that Alfred's portrayal had been misleadingly made more exciting.

[4] Scott Thill, technology and pop culture commentator for Wired magazine, praised the producers' initial choice to debut the villain Anarky on television, claiming that the character was relevant following the rise of the Occupy movement and the hacktivist activities of Anonymous.

The requirements of 3D animation at times necessitated that inanimate objects, such as ships and city streets, were built rather than drawn, which created a need for the completion of entire set designs.

While this would increase production times, it would also allow animators to bring cinematic qualities of lighting and camera play to the series.

The Batmobile was also subjected to scrutiny, as a "certain amount of weight" was added to it as it moved on city streets, out of concern that it would be unbelievable otherwise.

[7] Three months after the series premiere, Beware the Batman was pulled from the Cartoon Network schedule and put on hiatus on October 23, 2013.

[17] Eco-terrorists Professor Pyg and Mister Toad are hunting Gotham City's resident billionaires Simon Stagg, Michael Holt and Bruce Wayne to make them pay for their crimes against nature.

Batman is hot on the heels of an extremely dangerous thief named Magpie, who not only sports razor-sharp fingernails laced with poison but is also invulnerable to pain, but he is not the only one after her.

When Silver Monkey, one of the League's members, attacks Wayne Manor, it is up to Alfred and Katana to keep the assassin at bay until Batman returns.

But Katana is armed and ready for the task with the legendary Soultaker Sword, a sacred weapon she stole from the League of Assassins back when she used to work for them.

Ra's al Ghul recruits all of the imprisoned super villains to eliminate Batman in exchange for control of a piece of the city.

When Ghul captured the two men year ago, the sword was about to drain Alfred's soul, and her father took his place.

They eventually find out Rex Mason is the Golem and team-up with him to combat an army of armored thugs that have been terrorizing that neighborhood.

In addition, they also dodge Harvey Dent's newly created Special Crimes Unit, which has been ordered to take down both the armored criminals and the vigilantes fighting them.

Before imprisoning him, Dent decides to let Batman keep his mask on, as an unbearable high-pitched frequency is emitted whenever someone tries to remove it.

In order to keep his enemies closer, Bruce Wayne befriends Harvey Dent and the captain of the SCU, Dane Lisslow, with whom he makes a strong connection.

Harvey Dent faces off against Anarky as Batman and Katana fight their way out of a building surrounded by the GCPD.

The first 13 episodes of the series were released on Blu-ray and DVD in a collection titled Beware The Batman: Season 1 Part 1 – Shadows of Gotham on February 18, 2014.

Writers Mike W. Barr (co-creator of the character Katana), Scott Beatty, Matt Manning and Ivan Cohen (who wrote the episode "Unique") and artists Luciano Vecchio and Dario Brizuela produced an original comic book set in the continuity of the television series.