The Flash - Season 2 - Eps 17: Flash Back
After the shocking revelation that Zoom is Jay Garrick, Barry is more determined than ever to get back to Earth-2 to stop Zoom forever. Desperate to find a way to increase his speed, Barry decides to travel back in time and masquerade as his earlier self in order to get his arch-nemesis, Dr. Harrison Wells/Eobard Thawne, to teach him how to run faster. However, things donβt go as planned and Barry is stunned to face familiar foe Hartley Rathaway, as well as old friend Eddie Thawne. Iris makes peace with her past in order to embrace her future.
About The Flash

Title: The Flash
First Air Date: 2014-10-07
Last Air Date: 2023-05-24
Status: Ended
Rating: 7.8/10 (from 11226 votes)
Language: EN
Seasons: 10
Total Episodes: 184
Network: The CW
Genres: Drama, Sci-Fi & Fantasy
Production Companies: Warner Bros. Television, Berlanti Productions, DC Entertainment
Synopsis
After being struck by lightning, CSI investigator Barry Allen awakens from a nine-month coma to discover he has been granted the gift of super speed. Teaming up with S.T.A.R. Labs, Barry takes on the persona of The Flash, the Fastest Man Alive, to protect his city.
Cast

Grant Gustin
Barry Allen / The Flash

Candice Patton
Iris West-Allen

Danielle Panabaker
Khione

Danielle Nicolet
Cecile Horton

Kayla Compton
Allegra Garcia

Brandon McKnight
Chester P. Runk

Jon Cor
Mark Blaine / Chillblaine