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The Best Episodes of The Flash

Every episode of The Flash ranked from best to worst. Let's dive into the Best Episodes of The Flash!

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.

Genres:DramaSci-Fi & Fantasy
Network:The CW

Top Episode Highlight

The best episode of "The Flash" is "Out of Time", rated 9.6/10 from 15438 user votes. It was directed by Thor Freudenthal and written by Todd Helbing, Aaron Helbing. "Out of Time" aired on 3/17/2015 and is rated 0.1 point(s) higher than the second highest rated, "Fast Enough".

  • Out of Time
    9.6/10 15,438 votes

    #1 - Out of Time

    Season 1 Episode 15 - Aired 2015-03-17

    Mark Mardon, having survived his apparent death during the black-matter explosion, returns seeking revenge on Joe for the death of his brother Clyde... and has the same weather-manipulation powers as his deceased sibling.

    Director: Thor Freudenthal

    Writer: Todd Helbing, Aaron Helbing

  • Fast Enough
    9.5/10 13,267 votes

    #2 - Fast Enough

    Season 1 Episode 23 - Aired 2015-05-19

    Wells presents Barry with a life-changing choice. Dr. Martin Stein and Ronnie Raymond return to help the S.T.A.R. Labs team with this final fight.

    Director: Dermott Downs

    Writer: N/A

  • The Trap
    9.3/10 7,762 votes

    #3 - The Trap

    Season 1 Episode 20 - Aired 2015-04-28

    Barry, Caitlin, Cisco and Joe set a trap for Wells. Cisco uses himself as prey which puts him in grave danger. Meanwhile, Eddie makes a decision regarding Iris, which leaves Joe a bit unsettled.

    Director: Steve Shill

    Writer: Alison Schapker, Brooke Roberts

  • Enter Zoom
    9.3/10 8,007 votes

    #4 - Enter Zoom

    Season 2 Episode 6 - Aired 2015-11-10

    After recent events, Barry decides it’s time to confront Zoom and comes up with a dangerous plan. Caitlin sides with Jay and deems it too dangerous for Barry to engage with the speed demon. However, Iris shows her support and brings forth a surprising ally. We see what Earth-2 Harrison Wells’ life was like before coming through the breech.

    Director: J.J. Makaro

    Writer: Gabrielle Stanton, Brooke Roberts

  • The Man in the Yellow Suit
    9.2/10 8,938 votes

    #5 - The Man in the Yellow Suit

    Season 1 Episode 9 - Aired 2014-12-09

    Barry enjoys the annual tradition of tree trimming and gift exchange with Joe and Iris. He gives Iris a touching gift, but the moment is interrupted by Eddie’s arrival.

    Director: Ralph Hemecker

    Writer: Todd Helbing, Aaron Helbing

  • Welcome to Earth-2
    9.2/10 6,514 votes

    #6 - Welcome to Earth-2

    Season 2 Episode 13 - Aired 2016-02-09

    Barry, Wells and Cisco journey to Earth-2 to rescue Wells’ daughter, Jesse from Zoom. Barry is stunned when he runs into Earth-2 Iris and Joe, but nothing prepares him for meeting Killer Frost and Deathstorm. Meanwhile, back on Earth-1, Jay has to take over the Flash’s responsibilities when a meta-human nicknamed Geomancer attacks Central City.

    Director: Millicent Shelton

    Writer: Greg Berlanti, Andrew Kreisberg

  • Flash vs. Arrow (I)
    9.1/10 9,281 votes

    #7 - Flash vs. Arrow (I)

    Season 1 Episode 8 - Aired 2014-12-02

    Barry is thrilled when Oliver, Felicity and Diggle come to Central City to investigate a case involving a deadly boomerang. The crossover continues on Arrow S03E08 The Brave and the Bold.

    Director: Glen Winter

    Writer: N/A

  • Tricksters
    9.0/10 7,179 votes

    #8 - Tricksters

    Season 1 Episode 17 - Aired 2015-03-31

    When a villain calling himself the Trickster runs rampant in Central City, Joe and Barry go to Iron Heights to talk with the original Trickster.

    Director: Ralph Hemecker

    Writer: Andrew Kreisberg

  • Rogue Air
    9.0/10 7,204 votes

    #9 - Rogue Air

    Season 1 Episode 22 - Aired 2015-05-12

    When Harrison activates the particle accelerator, the team has no choice but to evacuate the five metahuman prisoners. Unfortunately, with time running out, Barry has no choice but to turn to Captain Cold for help. Meanwhile, Eddie escapes but has some surprising news for Iris.

    Director: Douglas Aarniokoski

    Writer: Todd Helbing, Aaron Helbing

  • Escape from Earth-2
    9.0/10 5,406 votes

    #10 - Escape from Earth-2

    Season 2 Episode 14 - Aired 2016-02-16

    On Earth-2, the team races to find Zoom's lair and asks for help from the most unexpected source. Meanwhile, back on Earth-1, Caitlin rushes to perfect Velocity-9 so that Jay can stop the Geomancer.

    Director: J.J. Makaro

    Writer: N/A

  • The Race of His Life
    9.0/10 6,771 votes

    #11 - The Race of His Life

    Season 2 Episode 23 - Aired 2016-05-24

    After Zoom reveals his true plan, Barry vows to do whatever it takes to stop him.

    Director: Antonio Negret

    Writer: Todd Helbing, Aaron Helbing

  • Invasion! (II)
    9.0/10 5,399 votes

    #12 - Invasion! (II)

    Season 3 Episode 8 - Aired 2016-11-29

    When aliens called the Dominators attack Central City, Barry speeds over to Star City to ask the Green Arrow for help in stopping them. Realizing the battle against the Dominators is bigger than they thought, they track down the Legends of Tomorrow, and Barry and Cisco create a breach to bring back a secret weapon – Supergirl. Once all of the super friends are assembled, they come up with a plan to attack but a shocking secret related to Flashpoint is revealed and suddenly no one is sure who they can trust. Meanwhile, Wally wants to join the battle against the aliens but Iris tells him he’s not ready. The crossover starts on Supergirl S02E08 Medusa (I). It continues on Arrow S05E08 Invasion! (III) and DC's Legends of Tomorrow S02E07 Invasion! (IV).

    Director: Dermott Downs

    Writer: N/A

  • Infantino Street
    9.0/10 4,861 votes

    #13 - Infantino Street

    Season 3 Episode 22 - Aired 2017-05-16

    With only 24 hours left until Savitar murders Iris, Barry struggles to save the woman he loves and makes the choice to use any means necessary to do so. Realizing he has one option left to save her, The Flash turns to Captain Cold for help.

    Director: Michael A. Allowitz

    Writer: N/A

  • What's Past Is Prologue
    9.0/10 3,694 votes

    #14 - What's Past Is Prologue

    Season 5 Episode 8 - Aired 2018-12-04

    Barry and Team Flash come up with a plan to stop Cicada. However, the plan calls for Barry and Nora to travel back in time to gather some key necessities. However, Barry hesitates, concerned about his daughter seeing certain parts of his life. Meanwhile, Sherloque takes his concerns about Nora to Iris, and Caitlin turns up a key asset in the fight against Cicada.

    Director: Tom Cavanagh

    Writer: Lauren Certo, Todd Helbing

  • Elseworlds (I)
    9.0/10 3,904 votes

    #15 - Elseworlds (I)

    Season 5 Episode 9 - Aired 2018-12-09

    When Barry Allen and Oliver Queen wake up one morning and realize they have swapped bodies with each other, the two set off to find out what disturbed the timeline to cause such a shift. However, things quickly go from bad to worse when they present their case to Team Flash and the gang doesn’t believe them. Barry and Oliver realize they need Supergirl’s help and travel to Smallville on Earth-38 where they end up meeting Kara’s cousin, Clark Kent, and intrepid reporter, Lois Lane. The crossover continues on Arrow S07E09 Elseworlds (II) and Supergirl S04E09 Elseworlds (III).

    Director: Kevin Tancharoen

    Writer: Sam Chalsen, Eric Wallace

  • Who Is Harrison Wells?
    8.9/10 6,579 votes

    #16 - Who Is Harrison Wells?

    Season 1 Episode 19 - Aired 2015-04-21

    Joe and Cisco go to Starling City to ask Quentin Lance for his help investigating the site of Harrison's car accident 15 years ago and determining what really happened. Meanwhile, Eddie is framed for a shooting by a shapeshifing metahuman who can take on the appearance of anyone he touches.

    Director: Wendey Stanzler

    Writer: Cortney Norris, Ray Utarnachitt

  • Legends of Today (I)
    8.9/10 5,972 votes

    #17 - Legends of Today (I)

    Season 2 Episode 8 - Aired 2015-12-01

    Vandal Savage arrives in Central City and sets his sights on Kendra Saunders. After Vandal attacks Kendra and Cisco, they turn to Barry for help. Realizing how dangerous Vandal is, Barry takes Kendra to Star City and asks Oliver and team to hide her until he can figure out how to stop Vandal. However, things quickly go from bad to worse when a man with wings AKA Hawkman shows up and flies off with Kendra. Meanwhile, Harrison develops a serum to make Barry run faster and asks Jay to test it out. The crossover continues on Arrow S04E08 Legends of Yesterday (II).

    Director: Ralph Hemecker

    Writer: N/A

  • Flash Back
    8.9/10 5,404 votes

    #18 - Flash Back

    Season 2 Episode 17 - Aired 2016-03-29

    After the shocking revelation that Zoom is Jay Garrick, Barry is more determined than ever to get back to Earth-2 to stop Zoom forever. Desperate to find a way to increase his speed, Barry decides to travel back in time and masquerade as his earlier self in order to get his arch-nemesis, Dr. Harrison Wells/Eobard Thawne, to teach him how to run faster. However, things don’t go as planned and Barry is stunned to face familiar foe Hartley Rathaway, as well as old friend Eddie Thawne. Iris makes peace with her past in order to embrace her future.

    Director: Alice Troughton

    Writer: Todd Helbing, Aaron Helbing

  • Enter Flashtime
    8.9/10 4,533 votes

    #19 - Enter Flashtime

    Season 4 Episode 15 - Aired 2018-03-06

    When a nuclear bomb detonates in downtown Central City, Barry, Jesse Quick and Jay Garrick 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.

    Director: Gregory Smith

    Writer: Todd Helbing, Sterling Gates

  • Invincible
    8.8/10 5,188 votes

    #20 - Invincible

    Season 2 Episode 22 - Aired 2016-05-17

    After Zoom unleashes an army of Earth-2 meta-humans on Central City, Barry is shaken when he sees their leader is the Black Canary’s Earth-2 doppelganger, the Black Siren. Meanwhile, Wally takes to the streets to help The Flash stop the meta-humans, which worries Joe. Iris and Henry are concerned about Barry taking on Zoom.

    Director: Jesse Warn

    Writer: N/A

  • I Know Who You Are
    8.8/10 4,555 votes

    #21 - I Know Who You Are

    Season 3 Episode 20 - Aired 2017-05-02

    Barry and the team meet Tracy Brand, a scientist, who may be the key to stopping Savitar. Unfortunately, Killer Frost is also after Tracy so Team Flash must battle their old friend, which proves to be particularly difficult for Cisco. Joe and Cecile’s relationship takes a big turn.

    Director: Hanelle M. Culpepper

    Writer: Joshua V. Gilbert, Bronwen Clark

  • Crisis on Infinite Earths: Part Three (III)
    8.8/10 3,534 votes

    #22 - Crisis on Infinite Earths: Part Three (III)

    Season 6 Episode 9 - Aired 2019-12-10

    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.

    Director: David McWhirter

    Writer: N/A

  • Fallout
    8.7/10 6,261 votes

    #23 - Fallout

    Season 1 Episode 14 - Aired 2015-02-17

    Martin and Ronnie are separated, only to realize that they must learn how to rejoin before Eiling hunts them down and kills them... and the Flash. Meanwhile, Joe shows Barry the 3D images from the Nora Allen crime scene, and Barry asks Martin for advice on time travel.

    Director: Stephen Surjik

    Writer: Keto Shimizu, Ben Sokolowski

  • Rupture
    8.7/10 5,366 votes

    #24 - Rupture

    Season 2 Episode 20 - Aired 2016-05-03

    Zoom arrives back on Earth-1 intent on taking over Central City. Barry and Wells come up with a plan to stop Zoom once and for all but it’s extremely dangerous. Unsure if he should take the risk, Barry reaches out to both fathers for advice. Henry is adamantly opposed to Barry risking his life again but Joe thinks he can handle it which puts the two men at odds with each other. Meanwhile, Cisco is shocked when he vibes the Earth-2 villain Rupture, who happens to be his brother Dante’s doppelganger. Rupture came to this Earth seeking justice for Reverb’s death. Iris decides she’s finally ready to open up to Barry about her feelings for him.

    Director: Armen V. Kevorkian

    Writer: Lauren Certo, Kai Yu Wu

  • The Present
    8.7/10 4,046 votes

    #25 - The Present

    Season 3 Episode 9 - Aired 2016-12-06

    With Alchemy and Savitar still looming threats, Barry is unable to focus on the Christmas holiday, and especially his relationship with Iris. Determined to stop Savitar, Barry goes to Earth-3 to get advice from Jay Garrick. Wally wants to help Barry fight Savitar and reveals that he’s been training with H.R, which doesn’t go over well with Barry. As Cisco faces his first Christmas without his brother Dante, old wounds are reopened.

    Director: Rachel Talalay

    Writer: N/A