Series overview
Season 1234567

The Flash was renewed for a fourth season by The CW on January 8, 2017.[1] It premiered on October 10, 2017.


Main cast

Recurring Cast


"Running up against an evil time remnant version of yourself is something no one should ever have to do, but that’s exactly what faced Barry Allen (aka The Flash) as he fought to save the life of fiancée Iris West from the God of Speed known as Savitar."

"Barry’s victory was short-lived, however, as an unbalanced Speed Force began to wreak havoc on Central City, forcing Barry to sacrifice himself for the greater good."

"With The Fastest Man Alive now trapped inside an extra-dimensional energy, and unknown dangers lurking in the shadows, it will be up to Team Flash to free Barry from his own personal Hell."[2]

Confirmed plot points


# Episode name Directed by Story by Teleplay by Original airdate
1 h Reborn}} style="tex ]] style="tex sberg]] style="tex g]] & Eric Wal & e style="tex October 10, 2017
With |Barry]] in the speed force, Iris West, ris, Wally Wes, Kid Flash, , e and Vibe have taken o have taken over protecting y (Earth One)|Central City]]. However, wh. However, when a powerful armored villain threatens to level the city if The Flash doesn't appear, Cisco makes a risky decision to break Barry out of the speed force. However, the Barry that comes out isn't the same Barry that went in.
2 gnals}} style="tex a Roche]] style="tex tler]] & Gabriel & za style="tex October 17, 2017
colspan="6" style="background-color:#FEE7E9;" Barry]] has his hand has his hands full when he takes on a dangerous meta]] who can cont who can control technology, while also confronting an obstacle in his personal life; the ramifications of abandoning ris]] for six mont for six months to balance the ]]. Meanwhile, . Meanwhile, sy]] breaches in for a hot in for a hot date with |Cisco]], but she get, but she gets annoyed when his work keeps them apart.
3 a Lady}} style="tex kian|Armen V. Kevorkian]] style="tex ]] & Judalina & ira style="tex October 24, 2017
colspan="6" style="background-color:#FEE7E9;" Barry]] and Team F and the team are hit by a are hit by a string of bad luck and realize it is the handiwork of a new meta, e|Becky]] nicknamed Ha nicknamed Hazard, who has the ability to give others bad luck, while cashing in the benefits for herself. Meanwhile, lls (Earth Two)|Harry Wells]] returns to [ returns to arth-1]] to give Wa to give Wally a message fr a message from |Jesse]].
4 d Journey Into Night}} style="tex h]] style="tex tes]] & Thomas P & d style="tex October 31, 2017
colspan="6" style="background-color:#FEE7E9;" Cisco]] is shocked w is shocked when sy]]'s father, 's father, er, shows up on, shows up on arth-1]]. Breacher ta. Breacher takes an immediate disliking to Cisco and decides to hunt him. Meanwhile, |Barry]] runs into hi runs into his old nemesis, ]].
5 ght Out}} style="tex y]] style="tex o]] & Kristen & style="tex November 7, 2017
Having received an ominous threat from her old boss, k|Amunet]], Caitlin fears that h fears that her past time as Killer Frost may be back to haunt her. oak|Felicity]] comes to Central City to help the to help the girls celebrate ris]]'s bacheloret's bachelorette party, while |Cisco]], , e and the guys and the guys take |Barry]] out for a ni out for a night on the town.
6 ry Met Harry...}} style="tex ll]] style="tex tler]] & Gabriel & za style="tex November 14, 2017
When collectors of Native American artifacts are attacked by a meta named n|Mina Chayton]] who can brin who can bring inanimate objects to life, |Barry]] turns to a s turns to a surprising ally for help. Determined to crack the identity of Voe|The Thinker]], Harry enlists Cisco’s help to su’s help to summon the ultimate think tank; "The Wells]]", a roundtab", a roundtable of the brightest lls]]’ from variou’ from various Earths.
7 e I Am}} style="tex rter]] style="tex e]] & Thomas P & d style="tex November 21, 2017
colspan="6" style="background-color:#FEE7E9;" DeVoe]]. DeVoe’s pas. DeVoe’s past is revealed through flashbacks. Meanwhile, ris]] puts the fin puts the final touches on the wedding, which is a week away.
8 n Earth-X, Part 3}} style="tex ns]] style="tex sberg]] & Marc Gug & heim style="tex g]] style="tex November 28, 2017
colspan="6" style="background-color:#FEE7E9;" Barry]] and Iris W and ris's wedding br's wedding brings the gang together, but things go awry when villains from ttack the c attack the ceremony. All of the superheroes band together with help from their super friends like itizen Cold]], The Ray, Felicity , oak, Iris West a, Iris West and s]] to take on t to take on their most formidable villains yet. Earth’s mightiest heroes - n|Green Arrow]], Supergirl, The Flash and Sara L and White Canary - lead their - lead their teams into battle to save the world.
9 n}} style="tex zczynski]] style="tex ]] & Judalina & ira style="tex December 5, 2017
k|Amunet]] kidnaps Caitlin and puts meta-dampener handcuffs on her to ke on her to keep her from turning into Killer Frost. Amunet tells Caitlin she needs her to perform a tricky medical task and if Caitlin fails, Amunet will kill her. Meanwhile, Voe|The Thinker]] traps The Flash in a speedst in a speedster-proof prison. With the clock ticking, The Team]] doesn’t have doesn’t have the time or resources to track both Caitlin and Barry so ris]] is forced to is forced to choose who to save.
10 l of The Flash}} style="tex era]] style="tex o]] & Kristen & style="tex January 16, 2018
As |Barry]]'s trial for 's trial for the murder of Voe]] begins, Ir begins, ris and Joe We and e must decide must decide how far they are willing to go to keep Barry out of prison.
11 gated Knight Rises}} style="tex a Roche]] style="tex tes]] & Thomas P & d style="tex January 23, 2018
When |a familiar villain]] returns to t returns to terrorize y (Earth One)|Central City]], Ralph must rise up must rise up to defend the innocent while |Barry]] is detained is detained by his trial. Meanwhile, Barry searches for the strength to keep his optimism alive in the face of his new circumstances.
12 Shrunk Team Flash}} style="tex ]] style="tex ]] & Judalina & ira style="tex January 30, 2018
A meta who can shrink anything he touches battles ]. Cisco and Ralph get caught i get caught in his crossfire and are shrunk to miniature versions of themselves. ton|Cecile]] realizes her realizes her pregnancy has caused her to have temporary powers and discovers she can hear other people's thoughts, which unnerves e]]. Meanwhile, . Meanwhile, |Barry]] meets someon meets someone with a mysterious connection to ]].
13 ors}} style="tex Weyr]] style="tex tler]] & Gabriel & za style="tex February 6, 2018
After hearing that k|Amunet]] has struck a has struck a deal to buy all of the ] in Iron He in s, Barry must decide must decide if he should expose his powers in order to save his cellmates. After a visit from an d friend]], Ralph is reminded is reminded of his shady past and wonders if he’s really a changed man.
14 9}} style="tex ker]] style="tex ] & Gabe Sny & style="tex February 27, 2018
colspan="6" style="background-color:#FEE7E9;" Barry]] meets Izzy meets a powerful woman whose abilit whose abilities could help him in his battle with anwhile, . Meanwhile, after learning that DeVoe is targeting everyone who was on the bus, |Ralph]] decides he d decides he doesn’t want to be a hero anymore, his only concern is staying alive. ers to he offers to help e]].
15 ashtime}} style="tex th]] style="tex g]] & Sterling & tes style="tex March 6, 2018
When a nuclear bomb detonates in downtown y (Earth One)|Central City]], Barry, Jesse Quick and Jay Ga and slow down ti slow down time by entering Flashtime. As everyone in the city is frozen, the three speedsters push themselves to the breaking point to save the city and everyone in it.
16 s, Run}} style="tex ian]] style="tex e]] style="tex March 13, 2018
] confronts a confronts a new bus meta, |Matthew AKA Melting Point]], with the ab, with the ability to swap people’s DNA. During a battle with Team Flash, Matthew transfers |Barry]]'s super spee's super speed to ris]]. Now, with a. Now, with a new threat unleashed on y (Earth One)|Central City]], Barry must , Barry must act as the team leader while Iris takes on the mantle of superhero speedster in order to defeat their new foe.
17 Annoyed}} style="tex ]] style="tex o]] & Kristen & style="tex April 10, 2018
colspan="6" style="background-color:#FEE7E9;" Barry]] and Ralph take differe take different approaches to finding the remaining bus metas before s to them gets to them. However, Ralph’s cavalier attitude frustrates Barry and the two clash over what it means to be a hero. Meanwhile, er]] returns to a returns to ask |Cisco]] for a favor. for a favor.
18 rself}} style="tex pepper]] style="tex tler]] & Gabriel & za style="tex April 17, 2018
When |Barry]] and [[Team F and ] find a way t find a way to enter Voe|the Thinker]]'s lair, Ralph considers cr considers crossing a dangerous line to defeat DeVoe. Meanwhile, e]] is concerned is concerned by lls (Earth Two)|Harry]]’s recent beh’s recent behavior.
19 ue}} style="tex lay]] style="tex ilbert]] & [[Jeff Her & ] style="tex April 24, 2018
When |Barry]] needs help t needs help transporting a dangerous meta, he calls on a new friend for help - itizen Cold]]; Cisco becomes susp becomes suspicious of lls (Earth Two)|Harry]].
20 e She Is}} style="tex nlea]] style="tex tes]] & Thomas P & d style="tex May 1, 2018
colspan="6" style="background-color:#FEE7E9;" Barry]] and [[Team F and ] team up with team up with sy]] to try to th to try to thwart Voe|the Thinker]]'s plan. Mean's plan. Meanwhile, |Cisco]] and Gypsy ha and Gypsy have a heart to heart talk about their relationship.
21 d the Harrisons}} style="tex ] style="tex ira]] & Lauren C & o style="tex May 8, 2018
With nlightenm's Enlightenment device nearly complete, in order to disable it |the Flash]] and Team F and his team must put the must put their faith in an unlikely ally - k]]. Meanwhile, . Meanwhile, lls (Earth Two)|Harry]] hits an all- hits an all-time low when the "Wells]]" kicks him o" kicks him out but then |Cisco]] introduces h introduces him to the "Harrisons]]".
22 st}}[8] style="tex ]][9] style="tex ]] & Kristen & [9] style="tex May 15, 2018nale" />
When Voe|DeVoe]] assaults an  assaults an ] facility to  facility to complete his Enlightenment Machine, |Barry]] realizes the realizes the only way he can stop him is if he allows |Cisco]] and Caitlin to accompany to accompany him into the facility. Still shaken by |Ralph]]'s death, Bar's death, Barry isn't sure he wants to risk any more of his friends' lives and considers taking on DeVoe solo.22">The Flash - Episode 4.22 - Think Fast - Press Release - SpoilerTV</ref>
23 he Flash}}[10] style="tex rter]][11] style="tex g]] & Eric Wal & e[11] style="tex May 22, 2018nale">The CW's Season Finale Dates for Various Shows - SpoilerTV</ref>
] gets help fr gets help from a surprising ally in their battle against Voe|DeVoe]].[12]

==Galler |}


Title cards

Promotional images



  1. The CW renews seven series including 'Arrow,' 'The Flash,' 'Supernatural' and 'Crazy Ex-Girlfriend' - LA Times
  2. The Flash Season 4 SDCC Panel Info Released -
  3. The Flash Season 4 Is About 'The Fastest Man Alive vs. Fastest Mind Alive' -
  4. ‘The Flash’ Spoilers: Is Anne Dudek Returning For Season 4? -
  5. 5.0 5.1 5.2 The Flash boss promises Mystery Girl answers in finale - EW
  6. Spoiler Room: Scoop on Scandal, Once Upon a Time, Supergirl, and more - EW
  7. The Flash Boss Teases Big Assists From Snart, Amunet, Gypsy and [Spoiler - TVLine]
  8. The Flash - Episode 4.21 - 4.22 - Titles Revealed – SpoilerTV
  9. Cite error: Invalid <ref> tag; no text was provided for refs named ep22
  10. The Flash - Episode 4.23 (Season Finale) - Title Revealed – SpoilerTV
  11. Cite error: Invalid <ref> tag; no text was provided for refs named ep23
  12. Flash Season 4 Finale Description: “We Are The Flash” - FlashTVNews
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