Kate and Alice continue their sister/nemesis dance, while Alice and Mouse construct their most evil plan yet. Mary invites Kate to a special event honoring Catherine and Jacob makes a decision that leaves Kate perplexed.

On the Kane sisters’ birthday, Kate and Alice contend with demons from the past, and an unexpected guest makes a surprise appearance in Gotham.

Batwoman confronts Gotham's biggest foe, while new information forces those closest to Kate to make some difficult decisions. Ryan's feelings for Angelique puts her partnership with Luke and Mary at risk, while Alice goes on a warped walk down memory lane.