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.
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see all options Availability data: JustWatch
- Seasons
- 9
- Episodes aired
- 184
- Latest aired
- S09E13
- Total runtime
- 5d 8h
Timeline when each season aired
- Season 1 October 2014 – May 2015 23 episodes
- Season 2 October 2015 – May 2016 23 episodes
- Season 3 October 2016 – May 2017 23 episodes
- Season 4 October 2017 – May 2018 23 episodes
- Season 5 October 2018 – May 2019 22 episodes
- Season 6 October 2019 – May 2020 19 episodes
- Season 7 March 2021 – July 2021 18 episodes
- Season 8 November 2021 – June 2022 20 episodes
- Season 9 February 2023 – May 2023 13 episodes
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S06E01 Into The Void
October 8 · 42min find the promo
Show synopsis
While Barry and Iris deal with the heartbreaking loss of their daughter, Nora, the team faces their greatest threat yet — one that threatens to destroy all of Central City. Meanwhile, Killer Frost has a brush with death that results in an unexpected new dynamic that will change her relationship with Caitlin forever.
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S06E02 A Flash of the Lightning
October 15 · 42min find the promo
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Faced with the news of his impending death, Barry's resiliency suffers as he struggles to fight fate. Meanwhile, Cecile's career as a D.A. conflicts with her identity when she crosses paths with a villainous meta-human.
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S06E03 Dead Man Running
October 22 · 42min find the promo
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Knowing that Crisis is only weeks away, Barry prepares a member of Team Flash for life without him while hunting a terrifying meta-human with an unquenchable thirst. Meanwhile, Ralph uncovers a family secret.
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S06E04 There Will Be Blood
October 29 · 42min find the promo
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Barry's efforts to prepare Cisco for Crisis are derailed when Cisco schemes to save Barry's life instead. Meanwhile, Ramsey Rosso uses his deadly new abilities to save his own life, while sacrificing his humanity in the process.
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S06E05 Kiss Kiss Breach Breach
November 5 · 42min find the promo
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Cisco's faith in his ability to fill Barry's shoes as Team Leader is upended when he learns of a shocking murder. Meanwhile, Killer Frost trusts no one except herself to hunt down the dangerous Ramsey Rosso.
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S06E06 License to Elongate
November 19 · 42min find the promo
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Barry turns his attention to prepping Elongated Man for life after Crisis and without The Flash, but Ralph ultimately teaches Barry a lesson. Meanwhile, Cecile faces her own moment of self-discovery while helping a recuperated Chester P. Runk reclaim his identity.
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S06E07 The Last Temptation of Barry Allen (1)
November 26 · 42min find the promo
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As Barry Allen stands on the threshold of his impending death in Crisis, his convictions are tested when the monstrous Dr. Ramsey Rosso infects The Flash with a mysterious, hallucinogenic contagion. Meanwhile, reporter Iris West-Allen uncovers a vast conspiracy.
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S06E08 The Last Temptation of Barry Allen (2)
December 3 · 42min find the promo
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With The Flash freshly infected by the monstrous Bloodwork, Iris and Cisco battle to help Barry take control of himself before he’s lost forever to Ramsey’s influence. Meanwhile, the rest of Team Flash fight to reclaim control of Central City from Bloodwork’s growing army.
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S06E09 Crisis on Infinite Earths: Part Three (III)
December 10 · 42min find the promo
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Pariah enlists Black Lightning to help stop the Anti-Monitor after Flash-90 shares what he learned from his battle in ‘Elseworlds.’ With the help of Black Lightning, Barry, Cisco and Killer Frost come up with a plan that could save them all. Meanwhile, Iris has a heart-to-heart with Ryan Choi, while Oliver and Diggle return to an old familiar stomping ground. The crossover starts on Supergirl S05E09 and Batwoman S01E09. It continues on Arrow S08E08 and Legends of Tomorrow S05E01.
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S06E10 Marathon
February 4 · 42min find the promo
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After "The Citizen" prints an explosive story, Iris' life is threatened; refusing to hide from her attackers, Iris sets out to expose a dangerous organization; Barry must face the consequences of the Crisis and fulfill Oliver Queen's wish for him.
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S06E11 Love Is a Battlefield
February 11 · 42min find the promo
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Barry and Iris plan a romantic dinner for Valentine's Day but their evening is interrupted by an old foe - Amunet; Frost gets into the holiday spirit and attempts to help Allegra reconnect with an old love.
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S06E12 A Girl Named Sue
February 18 · 42min find the promo
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After months of searching for Sue Dearbon, Ralph gets a lead on her whereabouts and finally comes face to face with his missing client. However, Sue refuses to return home to her family, and instead, takes Ralph on a daring adventure. Iris faces a new challenge while Barry considers a potentially dangerous request from a trusted source.
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S06E13 Grodd Friended Me
February 25 · 42min find the promo
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Feeling overwhelmed with all the changes since Crisis, Barry conducts an experiment that goes awry and puts him directly in Gorilla Grodd’s path. Expecting the worst, Barry is surprised when Grodd asks for his help. Unfortunately for both The Flash and Grodd, things get worse when another villain appears – Solovar. Meanwhile, Iris works with Eva to escape the Mirrorverse.
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S06E14 Death of the Speed Force
March 10 · 42min find the promo
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Kid Flash returns to Central City with a Zen attitude and new tricks up his sleeve. While thrilled to see his family again, Wally confides to Barry that he returned because he thinks there is something wrong with the speed force. Meanwhile, Cisco returns from his fact-finding mission across Earth-Prime.
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S06E15 The Exorcism of Nash Wells
March 17 · 42min find the promo
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The Flash takes on a dangerous new meta named Sunshine. Cisco sets out to help Nash.
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S06E16 So Long and Goodnight
April 21 · 42min find the promo
Show synopsis
After Black Hole hires Rag Doll to kill Joe, Singh suggests he go into Witness Protection but Joe refuses to stop investigating Carver. While investigating Carver with Cisco, Ralph runs into Sue. Iris becomes suspicious of Eva.
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S06E17 Liberation
April 28 · 42min find the promo
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After recent events, Barry takes a closer look at his life with Iris. Eva makes a bold move.
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S06E18 Pay the Piper
May 5 · 41min find the promo
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When Godspeed returns, Barry turns to Hartley Rathaway for help. However, things get tense quickly after Barry realizes one of the changes from Crisis is that The Flash and Pied Piper are now enemies. Meanwhile, Iris tries to escape the Mirrorverse.
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S06E19 Success Is Assured
May 12 · 42min find the promo
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Barry considers a risky plan to save Iris from the Mirrorverse. Ralph attempts to stop Sue from making a grave mistake that could destroy her life.