The CW network has released the synopsis for episode #123 of The Flash, which you can check out below. The installment, titled “Fast Enough,” is officially described as follows:
EPIC SEASON FINALE; VICTOR GARBER AND ROBBIE AMELL GUEST STAR — Wells (Tom Cavanagh) presents Barry (Grant Gustin) with a life-changing choice. Dr. Martin Stein (guest star Victor Garber) and Ronnie Raymond (guest star Robbie Amell) return to help the S.T.A.R. Labs team with this final fight.
The Flash “Fast Enough” was directed by Dermott Downs with story by Greg Berlanti & Andrew Kreisberg and teleplay by Gabrielle Stanton & Andrew Kreisberg. The episode airs Tuesday, May 19, at 8pm on The CW.