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…

With a new ally on his team, Oliver engages Diaz in an epic final battle.

Myr’nn inadvertently causes psychic disturbances at the DEO; Supergirl must work with J’onn to contain the chaos; Mon-El begins training Kara in fighting techniques he’s learned in the future.