The Flash - Season 3 - Eps 19: The Once and Future Flash
Barry travels to the future to find out Savitar’s still unknown identity in the hopes of saving Iris. Upon his arrival in 2024, Barry encounters future versions of his Team Flash friends, who, following the death of Iris, have become very different people, profoundly impacted by their showdown with Savitar. It will be up to Barry to infuse a sense of hope back into the team, as he proves to be hero his future friends have been waiting for. Meanwhile, back in 2017, the hunt for Killer Frost continues.
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