Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, Lena joins the Super Friends on a mission but finds she disagrees with their plan of action against the Phantoms and wonders if she is truly ready to be a part of the team.
Ryan is faced with a difficult decision that could expose her as Batwoman, creating a rift in the Bat Team. Meanwhile, Black Mask's plans for Kate Kane begin to unfold. Alice is reunited with someone from her past, and Sophie must decide where her loyalty lies.
As Batwoman focuses even more effort on taking down Black Mask, a new foe emerges, diverting the Bat team's attention to a distressing issue in Gotham. Continually haunted by the mistakes of his past, Jacob travels down a dangerous path in an attempt to eradicate them. Alice and Julia discover they have an enemy in common.
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.