Laurel Lance lives…on Earth-2, that is, in the penultimate episode of The Flash season two.
The CW has released an official synopsis for episode 2×22 of The Flash titled “Invincible,” (airing May 17) which features Katie Cassidy’s return to the DCTV world as Laurel Lance’s doppleganger, Black Siren, an Earth-2 metahuman wreaking havoc on Central City.
Also, Wally West joins The Flash in the fight against these metahumans, which more than worries Joe as you’d expect.
Here’s the synopsis:
KATIE CASSIDY GUEST STARS AS BLACK SIREN – 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. Jesse Warn directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Brooke Roberts & David Kob (#222). Original airdate 5/17/2016.
The Flash airs Tuesdays at 8/7c on The CW.