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.
With Frost facing an unjust punishment for her past crimes, Caitlin goes to great lengths to save her sister. Meanwhile, Barry's efforts to protect Speed Force Nora lead to a shocking discovery.
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.
With Batwoman and The Crows each hot on the trail of the False Face Society, their efforts collide, and tension escalates. Alice seeks out Enigma, and Sophie and Ryan find some common ground.
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.
Cisco and Chester travel back in time and get stuck in 1998, repeating the same day over and over again. The key to returning home is at Chester's childhood home but he refuses to visit.
