Series overview
Season 12345678
"The reason you beat Zoom, Godspeed, Thawne, is because speed isn't what drives you, it's love. That's your true force and there is nothing artificial about that. "
Caitlin Snow to Barry Allen[src]

The sixth season of The Flash​​​​​​ premiered on October 8, 2019, on The CW and concluded on May 12, 2020. It was originally going to consist of 22 episodes.[1] However, only 20 were produced[2] due to production shutting down indefinitely on March 13, 2020, due to the COVID-19 pandemic.[3] On April 20, 2020, it was revealed that only 19 out of the produced 20 episodes would be aired.[4]

Beginning with this season, seasons were broken up into story arcs which were called "Graphic Novels". The first half of the season was called "Blood and Truth"[5] and the second half was called "Reflections and Lies".[6]



Main cast

Recurring cast


# Episode name Directed by Story by Teleplay by Original airdate
Blood and Truth
1 "Into the Void" Gregory Smith Eric Wallace & Kelly Wheeler October 8, 2019
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.
2 "A Flash of the Lightning" Chris Peppe Sam Chalsen & Jeff Hersh October 15, 2019
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.
3 "Dead Man Running" Sarah Boyd Lauren Barnett & Thomas Pound October 22, 2019
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.
4 "There Will Be Blood" Marcus Stokes Lauren Certo & Sterling Gates October 29, 2019
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.
5 "Kiss Kiss Breach Breach" Menhaj Huda Kelly Wheeler & Joshua V. Gilbert November 5, 2019
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.
6 "License to Elongate" Danielle Panabaker Thomas Pound & Jeff Hersh November 19, 2019
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.
7 "The Last Temptation of Barry Allen, Pt. 1" Chad Lowe Jonathan Butler & Gabriel Garza November 26, 2019
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.
8 "The Last Temptation of Barry Allen, Pt. 2" Michael Nankin Kristen Kim & Joshua V. Gilbert December 3, 2019
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.
9 "Crisis on Infinite Earths: Part Three" David McWhirter Eric Wallace Lauren Certo & Sterling Gates December 10, 2019
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.
Reflections and Lies
10 "Marathon" Stefan Pleszczynski Sam Chalsen & Lauren Barnett February 4, 2020
After The Citizen prints an explosive story, Iris's life is threatened. Refusing to hide from those that are attacking her, Iris sets out to expose a dangerous organization. Meanwhile, Barry must face the consequences of the Crisis and fulfill Oliver Queen's wish for him.
11 "Love Is A Battlefield" Sudz Sutherland Kelly Wheeler & Jeff Hersh February 11, 2020
Barry and Iris plan a romantic dinner for Valentine's Day but their evening is interrupted by an old foe - Amunet. Meanwhile, Frost gets into the holiday spirit and attempts to help Allegra reconnect with an old love.
12 "A Girl Named Sue" Chris Peppe Thomas Pound & Lauren Certo February 18, 2020
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.
13 "Grodd Friended Me" Stefan Pleszczynski Kristen Kim & Joshua V. Gilbert February 25, 2020
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.
14 "Death of the Speed Force" Brent Crowell Sam Chalsen & Emily Palizzi Gilbert March 10, 2020
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.
15 "The Exorcism of Nash Wells" Eric Dean Seaton Lauren Barnett & Sterling Gates March 17, 2020
The Flash takes on a dangerous new meta named Sunshine. Cisco sets out to help Nash.
16 "So Long and Goodnight" Alexandra La Roche Kristen Kim & Thomas Pound April 21, 2020
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.
17 "Liberation" Jeff Byrd Jonathan Butler & Gabriel Garza April 28, 2020
After recent events, Barry takes a closer look at his life with Iris. Eva makes a bold move.
18 "Pay the Piper" Amanda Tapping Jess Carson May 5, 2020
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.
19 "Success Is Assured" Phil Chipera Kelly Wheeler & Lauren Barnett May 12, 2020
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.


  • Executive producer Eric Wallace took over as the sole showrunner this season due to Todd Helbing stepping down from the position at the end of last season to focus on the development of Superman & Lois.[7]
  • On March 13, 2020, it was reported that the production of the season had been shut down until further notice due to the COVID-19 pandemic.[3] As a result, only 20 out of the planned 22 episodes were produced.[2]
    • On March 26, 2020, it was reported that the season would go on hiatus after "All's Wells That Ends Wells" with the hope that the final 2 episodes would be produced and aired later in 2020.[8]
    • On April 20, 2020, Grant Gustin revealed that the season's new finale would be "Success Is Assured" and that it set up a different cliffhanger for next season than originally planned.[4]
    • On May 13, 2020, showrunner Eric Wallace revealed that the last three episodes of this season (episodes 20, 21, and 22), that weren't produced and aired due to the COVID-19 pandemic, will become the first three episodes of next season.[9]



Title cards

Promotional images



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