The Best Episodes of The Flash

#1 Fan Favorite
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9.6/10(16773 votes)
#1 - Out of Time
S1:E153/17/2015
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
Writers:Todd Helbing, Aaron Helbing
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Director:Thor Freudenthal
Writers:Todd Helbing, Aaron Helbing
9.5/10(14442 votes)
#2 - Fast Enough
S1:E235/19/2015
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:Unknown
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Director:Dermott Downs
Writer:Unknown
9.3/10(8849 votes)
#3 - Enter Zoom
S2:E611/10/2015
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
Writers:Brooke Roberts, Gabrielle Stanton
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Director:J.J. Makaro
Writers:Brooke Roberts, Gabrielle Stanton
9.3/10(8677 votes)
#4 - The Trap
S1:E204/28/2015
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
Writers:Alison Schapker, Brooke Roberts
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Director:Steve Shill
Writers:Alison Schapker, Brooke Roberts
9.2/10(9950 votes)
#5 - The Man in the Yellow Suit
S1:E912/9/2014
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
Writers:Todd Helbing, Aaron Helbing
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Director:Ralph Hemecker
Writers:Todd Helbing, Aaron Helbing
9.2/10(7241 votes)
#6 - Welcome to Earth-2
S2:E132/9/2016
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
Writers:Greg Berlanti, Andrew Kreisberg
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Director:Millicent Shelton
Writers:Greg Berlanti, Andrew Kreisberg

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9.1/10(10252 votes)
#7 - Flash vs. Arrow (I)
S1:E812/2/2014
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:Unknown
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Director:Glen Winter
Writer:Unknown
9.0/10(8058 votes)
#8 - Rogue Air
S1:E225/12/2015
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
Writers:Todd Helbing, Aaron Helbing
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Director:Douglas Aarniokoski
Writers:Todd Helbing, Aaron Helbing
9.0/10(8035 votes)
#9 - Tricksters
S1:E173/31/2015
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
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Director:Ralph Hemecker
Writer:Andrew Kreisberg
9.0/10(7539 votes)
#10 - The Race of His Life
S2:E235/24/2016
After Zoom reveals his true plan, Barry vows to do whatever it takes to stop him.
Director:Antonio Negret
Writers:Todd Helbing, Aaron Helbing
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Director:Antonio Negret
Writers:Todd Helbing, Aaron Helbing
9.0/10(6075 votes)
#11 - Escape from Earth-2
S2:E142/16/2016
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:Unknown
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Director:J.J. Makaro
Writer:Unknown
9.0/10(6001 votes)
#12 - Invasion! (II)
S3:E811/29/2016
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:Unknown
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Director:Dermott Downs
Writer:Unknown
9.0/10(5506 votes)
#13 - Infantino Street
S3:E225/16/2017
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:Unknown
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Director:Michael A. Allowitz
Writer:Unknown
9.0/10(4394 votes)
#14 - Elseworlds (I)
S5:E912/9/2018
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
Writers:Sam Chalsen, Eric Wallace
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Director:Kevin Tancharoen
Writers:Sam Chalsen, Eric Wallace
8.9/10(7421 votes)
#15 - Who Is Harrison Wells?
S1:E194/21/2015
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
Writers:Ray Utarnachitt, Cortney Norris
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Director:Wendey Stanzler
Writers:Ray Utarnachitt, Cortney Norris
9.0/10(4189 votes)
#16 - What's Past Is Prologue
S5:E812/4/2018
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
Writers:Todd Helbing, Lauren Certo
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Director:Tom Cavanagh
Writers:Todd Helbing, Lauren Certo
8.9/10(6631 votes)
#17 - Legends of Today (I)
S2:E812/1/2015
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:Unknown
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Director:Ralph Hemecker
Writer:Unknown
8.9/10(6041 votes)
#18 - Flash Back
S2:E173/29/2016
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
Writers:Todd Helbing, Aaron Helbing
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Director:Alice Troughton
Writers:Todd Helbing, Aaron Helbing
8.9/10(5192 votes)
#19 - Enter Flashtime
S4:E153/6/2018
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
Writers:Todd Helbing, Sterling Gates
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Director:Gregory Smith
Writers:Todd Helbing, Sterling Gates
8.8/10(5815 votes)
#20 - Invincible
S2:E225/17/2016
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:Unknown
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Director:Jesse Warn
Writer:Unknown
8.8/10(5139 votes)
#21 - I Know Who You Are
S3:E205/2/2017
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
Writers:Joshua V. Gilbert, Bronwen Clark
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Director:Hanelle M. Culpepper
Writers:Joshua V. Gilbert, Bronwen Clark
8.8/10(3984 votes)
#22 - Crisis on Infinite Earths: Part Three (III)
S6:E912/10/2019
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. The crossover starts on Supergirl S05E09 and Batwoman S01E09. It continues on Arrow S08E08 and Legends of Tomorrow S05E01.
Director:David McWhirter
Writer:Unknown
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Director:David McWhirter
Writer:Unknown
8.7/10(7043 votes)
#23 - Fallout
S1:E142/17/2015
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
Writers:Ben Sokolowski, Keto Shimizu
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Director:Stephen Surjik
Writers:Ben Sokolowski, Keto Shimizu
8.7/10(5978 votes)
#24 - Rupture
S2:E205/3/2016
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
Writers:Kai Yu Wu, Lauren Certo
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Director:Armen V. Kevorkian
Writers:Kai Yu Wu, Lauren Certo
8.7/10(4588 votes)
#25 - The Present
S3:E912/6/2016
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:Unknown
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Director:Rachel Talalay
Writer:Unknown