The Flash — “Fast Enough” — Image FLA123C_0346b — Pictured: Tom Cavanagh as Harrison Wells — Photo: Dean Buscher/The CW — © 2015 The CW Network, LLC. All rights reserved.

http://www.youtube.com/watch?v=488MnaUt1mU

Episode Description:

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. Dermott Downs directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Gabrielle Stanton & Andrew Kreisberg (#123). Original airdate 5/19/2015.