Overview: Harley Quinn is fed up being the Joker’s sidekick and strikes out on her own – determined to become the criminal Queenpin of Gotham City.
Overview: Determined to become one of the vaunted Legion of Doom, Harley attempts to make a big splash by crashing one of their criminal enterprises with the help of her BFF, Poison Ivy.
Overview: Realizing she needs a crew to pull off heists that will attract the Legion of Doom’s attention, Harley attempts to recruit Dr. Psycho and Clayface.
Overview: In search of a nemesis, Harley goes after Batman, but ends up with an adolescent Robin, making her the laughing stock of the criminal underworld.
Overview: When Harley suffers a paralyzing identity crisis, her crew must enter Harley’s mind to free her with the help of Dr. Psycho’s telepathic powers.
Overview: When Clayface loses his arm in a heist, it turns out to be not only evidence for Jim Gordon, but also a key witness against Harley and her crew.
Overview: Harley recruits her friend and mentor Queen of Fables to help her steal a force field from STAR Labs, to steal a weather-changing machine, so she can impress the Legion of Doom. Meanwhile, Poison Ivy dates Kite Man.
Overview: Harley gets an invite to the Legion of Doom’s prospective members party, but Ivy learns that she's the one they're really interested in.
Overview: Now a member of the Legion of Doom and The Joker’s equal, Harley finds herself spending time with him. Will she slip into her old ways?
Overview: After a falling out with her crew, Harley heads back home to Bensonhurst, where her doting mother waits for her... and her deadbeat dad, who’s more dangerous than anticipated.
Overview: Harley must rescue Ivy from the clutches of Scarecrow, who’s trying to harvest her pheromones to make a super toxin that turns plants into sentient monsters.
Overview: Harley thinks the Legion of Doom is behind Ivy's capture and the tree monsters currently ravaging Gotham. But it's a trap!
Overview: In the season finale, Harley has her final showdown with the Joker, when [spoilers] [spoil] [spoilers]. Will they [spoiler]? Maybe. But you can bet they [spoiler]!