幼い頃に母親を殺害され、その犯人として父親が投獄されてしまった過去を持つバリー・アレン。幼いバリーは当時の捜査官、ウエスト刑事に引き取られて、その娘アイリスと共に育つ。大人になり科学者となった彼は、CSIの科学調査員としてセントラル・シティの警察に勤務。父親の無実を晴らすため、母親の殺人事件の真相を追る。幼なじみのアイリスへの淡い恋心を抱きつつも。 そんなある日、実験室で粒子加速器が爆発し、巻き込まれたバリーはこん睡状態に陥いる。長い眠りから覚めた彼は、自分に超人的な治癒力と、閃光（＝フラッシュ）がごとく、超高速で移動できる能力が備わっていること知り、“フラッシュ”として悪と闘うことを決意する。 胸に稲妻のマークが入った深紅のコスチュームを身にまとい、超高速で疾走しながら、自分の大切な人々を守りぬいてゆく。
放送日: 2021-03-02
上映時間: 42 min
概要: When an experiment to save Barry's speed backfires, Nash Wells searches for a way to save The Flash and comes up with a dangerous plan. Meanwhile, Iris makes a startling realization inside the Mirrorverse and Cecile faces off with Rosa Dillon.
放送日: 2021-03-09
上映時間: 42 min
概要: When Barry suddenly gains the power of speed thinking, he attempts to use his new gift to save Iris. While Barry is thrilled with his new power, Cisco is hesitant to trust it. Meanwhile, Eva must face a shattering truth.
放送日: 2021-03-16
上映時間: 42 min
概要: As Eva becomes more powerful, Barry and team must find a way to stop her. They are shocked when an old friend - Sue Dearbon risks her life to help.
放送日: 2021-03-23
上映時間: 42 min
概要: The Flash must deal with Abra Kadabra's sudden return to Central City. The villain is back with a vengeance and a score to settle. Meanwhile, Allegra deals with a tricky situation and Caitlin suspects something is off with Frost. Iris is forced to look at a dark moment in her past.
放送日: 2021-03-30
上映時間: 42 min
概要: When a powerful new villain, Psych, channels and amplifies everyone's fears in order to wreak havoc on Central City, Barry realizes, with Cecile's help, that he must face his own worst fear in order to beat this new threat. Meanwhile, Joe is surprised when Kristen Kramer from the Governor's Municipal Logistics Commission drops into CCPD for a visit. Iris warns her father to dig deeper on why Kristen is actually there. Caitlin and Frost argue about how to live their lives.
放送日: 2021-04-06
上映時間: 42 min
概要: Cisco and Chester travel back in time and get stuck in 1998, repeating the same day over and over again. The key to returning home is at Chester's childhood home but he refuses to visit.
放送日: 2021-04-13
上映時間: 42 min
概要: When a mysterious ice powered enemy frames Frost for a brutal crime, she must find a way to clear her name; Barry and Iris have a surprise houseguest, and Joe continues to deal with Kristen Kramer.
放送日: 2021-05-04
上映時間: 42 min
概要: With Frost facing an unjust punishment for her past crimes, Caitlin goes to great lengths to save her sister. Meanwhile, Barry's efforts to protect Speed Force Nora lead to a shocking discovery.
放送日: 2021-05-11
上映時間: 42 min
概要: After a devastating betrayal, Barry turns to Timeless Wells for help. Meanwhile, Iris leads Team Citizen down a dangerous road in search of answers, and Cisco confides his biggest fear to Kamilla.
放送日: 2021-05-18
上映時間: 42 min
概要: Iris is pushed to the limit as she seeks to uncover the mysterious truth about Psych; Barry initiates a new training system, that could potentially backfire, with devastating consequences; Joe and Cisco make life-altering decisions.
放送日: 2021-05-25
上映時間: 42 min
概要: Barry and Iris come together to try and stop a dangerous force from destroying Central City.
放送日: 2021-06-08
上映時間: 42 min
概要: Cisco and Kamilla tell the team they are leaving Central City. However, Barry, Iris and Caitlin don't have much time to digest the news because a new version of Rainbow Raider strikes and OG Team Flash must join together one final time to save the city.
放送日: 2021-06-15
上映時間: 42 min
概要: Cecile is forced to confront her past in order to break free from a psychic prison. Meanwhile, Chester takes over for Cisco but makes a mistake that puts Barry in serious danger. Joe investigates Kristen Kramer's old military ties and discovers an unsettling truth.
放送日: 2021-06-22
上映時間: 41 min
概要: When Ultraviolet returns to Central City, Allegra is determined to find her cousin and change her heart. Meanwhile, Joe finds evidence that Kristen Kramer may not be the good cop she appears to be.
放送日: 2021-06-29
上映時間: 42 min
概要: When an army of Godspeeds attack Central City, Barry and Iris must put their family plans on hold and focus on the latest threat to their home. Meanwhile, Chillblaine is released from prison and claims to be reformed but Frost has her doubts.
放送日: 2021-07-06
上映時間: 42 min
概要: John Diggle arrives in Central City with a weapon to help Barry stop the Godspeed War. Meanwhile, Allegra and Ultraviolet's new bond is put to the ultimate test, while Joe and Kristen Kramer are hunted by a former colleague of hers.
放送日: 2021-07-13
上映時間: 42 min
概要: Barry and Iris greet their future children, XS and Bart, only for a shocking secret to threaten their new familial harmony. Meanwhile, the Godspeed war intensifies and threatens to destroy Central City.
放送日: 2021-07-20
上映時間: 42 min
概要: The Flash enlists a host of speedster allies, including Iris and his children from the future - Bart and Nora West-Allen - to end the speedster war and defeat a deadly new adversary: the villainous Godspeed.
