When the woman she loves is abducted by a terrorist group, Kate Kane returns home to Gotham to face her personal demons -- and discovers the truth her cousin Bruce was hiding.
Kate challenges her father in an effort to prove that Alice is in fact her sister, presumed dead as a child but now returned with a vendetta -- putting Kate in the crosshairs of both the Crows and the Wonderland Gang.
With the city stirred up by what they think is Batman's return, Kate learns that one of her cousin's enemies has acquired a weapon able to kill the long-absent hero. While Mary's style is cramped by a new bodyguard, Alice finds a new way to taunt her father.
Batwoman tries to stop a jewel thief named Magpie, who is targeting a museum show with explosives. Alice threatens Catherine after discovering a secret.
Kate captures Alice to learn the truth of what happened to her after the accident, but must follow her down the rabbit hole to a sad and disturbing story of the father and son who took her in. Meanwhile, Mary learns the truth of her mother's actions.
Alice and Mouse set their eyes on a powerful weapon, putting her father and her sister in harm's way. Meanwhile a killer sets his sights on victims connected to the criminal justice system, and Batwoman brings an injured Sophie to Mary's clinic.
Kate's relationship with Sophie is on the line when her former lover threatens to expose her secret identity to her father. With an assassin targeting Batwoman, an old friend puts her life on the line.
On the eve of a gala to honor Catherine, Alice abducts her father and plans to exact her revenge on the family. Meanwhile Kate is unsettled by her father's newfound support for the woman who betrayed them both.
The struggle against the Anti-Monitor sends the heroes to find two great Paragons of virtue -- a sorrow-filled Kryptonian and a Batman living in the future on Earth-99. Meanwhile Lex Luthor is set loose with a powerful weapon, and Mia and Barry are determined to save Oliver.
Gotham comes under threat by a potential cyber terrorist, as Batwoman grapples with presenting the city with a false picture of herself. While Alice celebrates her recent revenge, Mary turns her attention to Jacob Kane's impending murder trial.
With Alice still in custody, Kate is stunned by the return of her sister Beth -- dropped into the new reality from a parallel Earth -- while the Wonderland Gang takes a pair of hostages in a ploy to get Alice back.
Beth and Alice are both afflicted by debilitating headaches, leading the team to conclude that they cannot both exist in the same universe at the same time. Sophie issues a kill order for Alice, and Jacob finds someone who may help to clear his name.
Batwoman tangles with a vampiric new villain going by the name Nocturna, leaving Mary in harm's way. Jacob is released from prison, and Sophie is advised to keep her distance from Gotham's heroine for the sake of her career.
While Batwoman and Luke chase a disturbed young woman who is targeting social media mavens, Sophie faces a personal decision when her mother comes to visit. Jacob Kane's investigation leads him to an unsettling possibility, and Alice finds an opportunity for retribution against her kidnapper.
While Luke and Mary search for Beth's killer, Kate and Alice go in search of Mouse -- who is under the influence of a powerful fear toxin. Meanwhile, Alice recalls her dark past and the fate of her mother.
In despair after an act of revenge, Kate agrees to a truce with Alice in order to break Mouse out of Arkham and leave town for good. Jacob and Sophie begin looking in to Lucius Fox's murder after evidence surfaces casting doubt on his killer's conviction.
When Batwoman sidelines herself out of self-doubt, a mad bomber by the moniker of "The Detonator" begins targeting Gotham's infrastructure and first responders. Alice is frustrated by her new home inside Arkham Asylum.
Kate enlists help from Luke and Julia to infiltrate a crime boss's club in order to recover Lucius Fox's journal. Inside Arkham, Alice recruits a new ally for her plans.
Alice's new ally, now going by the nickname "Hush," begins kidnapping cipher experts across the city in hopes of cracking the code of Lucius Fox's journal. Kate must decide how far she is willing to go after someone close to her is taken next.
After Arkham's inmates escape across the city Batwoman must track a murderous psychopath called Titan, putting her at odds with Commander Kane. Meanwhile Alice hunts for a shard of kryptonite, which she believes will help her kill Batwoman.