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The Flash: Back from the Speed Force, Barry Takes on Black Siren (Watch Trailer)

Black Siren (Katie Cassidy) in 'The Flash'

Now that Barry Allen is back from the Speed Force, he has a lot on his plate as The Flash.

At the end of this week’s episode, Zoom rallied his army of meta-humans from Earth-2, commanding them to take over Earth-1. Turns out, that army is led by someone who looks familiar to Barry — Laurel Lance‘s Earth-2 doppleganger, Black Siren.

Watch the trailer for next week’s episode below.

THE FLASH: “INVINCIBLE”

After Zoom (guest star Teddy Sears) unleashes an army of Earth-2 meta-humans on Central City, Barry (Grant Gustin) is shaken when he sees their leader is the Black Canary’s Earth-2 doppelganger, the Black Siren (guest star Katie Cassidy). Meanwhile, Wally (Keiynan Lonsdale) takes to the streets to help The Flash stop the meta-humans, which worries Joe (Jesse L. Martin). Iris (Candice Patton) and Henry (guest star John Wesley Shipp) are concerned about Barry taking on Zoom.

The Flash airs Tuesdays at 8pm EST on The CWSuperFable