After Zoom unleashes an army of Earth-2 meta-humans on Central City, Barry is shaken when he sees their leader is the Black Canary's Earth-2 doppelganger, the Black Siren. Meanwhile, Wally takes to the streets to help the Flash stop the meta-humans, which worries Joe. Iris and Henry are concerned about Barry taking on Zoom.
The Flash 2014 Season 2, Episode 22 - Invincible
Air date: May 17, 2016