Barry Allen (Grant Gustin) lived a normal life as a perpetually tardy C.S.I. in the Central City Police Department.
Barry's life changed forever when the S.T.A.R. Labs Particle Accelerator exploded, creating a dark-matter lightning storm that struck Barry, bestowing him with super-speed and making him the fastest man alive - The Flash.
But when Barry used his extraordinary abilities to travel back in time and save his mother's life, he inadvertently created an alternate timeline known as Flashpoint; a phenomenon that gave birth to the villainous speed god known as Savitar, and changed the lives of Caitlin Snow (Danielle Panabaker) and Wally West (Keiyan Lonsdale) forever.
With the help of his adoptive father, Joe West (Jesse L. Martin), his lifelong best friend and love interest Iris West (Candice Patton), and his friends at S.T.A.R. Labs - Cisco Ramon (Carlos Valdes), C.S.I Julian Albert (Tom Felton), and an Earth-19 novelist named H.R. Wells (Tom Cavanaugh) - Barry continues to protect the people of Central City from the meta-humans that threaten it.
As Season 5 begins, after outthinking The Thinker, you'd hope that Barry Allen might have some down time to contemplate his future with his new wife, Iris.
But with their speedster daughter from the future, Nora (new series regular Jessica Parker Kennedy), already grown and a part of their lives, they've now got to face Central City's newest menace - the DC Super-Villain Cicada.
Season 5 pits Team Flash against yet another formidable adversary, the show's second non-speedster Big Bad. Chris Klein (Election, Oz, American Pie) is a new series regular to play this season's scourge of Central City, Cicada.
A grizzled, blue-collar everyman whose family has been torn apart by metahumans, Cicada now seeks to exterminate the epidemic - one metahuman at a time.
Based on the DC characters, the series is executive produced by Greg Berlanti, Todd Helbing, Sarah Schechter and Eric Wallace. The Flash is produced by Bonanza Productions in association with Berlanti Productions and Warner Bros. Television.