The BEST episodes of The Flash (2014) season 3

Every episode of The Flash (2014) season 3, ranked from best to worst by thousands of votes from fans of the show. The best episodes of The Flash (2014) season 3!

After being struck by lightning, Barry Allen wakes up from his coma to discover he's been given the power of super speed, becoming the Flash, fighting crime in Central City.

Last Updated: 9/6/2024Network: The CWStatus: Ended
I Know Who You Are
star
8.06
6189 votes

#1 - I Know Who You Are

Season 3 - Episode 20 - Aired 5/2/2017

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.

Watch Now:AmazonApple TV
Invasion! (2)
star
8.01
6706 votes

#2 - Invasion! (2)

Season 3 - Episode 8 - Aired 11/29/2016

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.

Directors: Dermott Downs
Watch Now:AmazonApple TV
Finish Line
star
8.00
5727 votes

#3 - Finish Line

Season 3 - Episode 23 - Aired 5/23/2017

With nothing left to lose, Barry takes on Savitar in an epic showdown.

Directors: David McWhirter
Watch Now:AmazonApple TV
Infantino Street
star
7.96
6149 votes

#4 - Infantino Street

Season 3 - Episode 22 - Aired 5/16/2017

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.

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The Present
star
7.94
6517 votes

#5 - The Present

Season 3 - Episode 9 - Aired 12/6/2016

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.

Directors: Rachel Talalay
Watch Now:AmazonApple TV
Killer Frost
star
7.92
6520 votes

#6 - Killer Frost

Season 3 - Episode 7 - Aired 11/22/2016

Caitlin uses her powers to save Barry but as her mother predicted, the effort unleashes her inner Killer Frost. Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian and battling both The Flash and Vibe. Meanwhile, Joe and H.R. have a heart to heart talk.

Directors: Kevin Smith
Watch Now:AmazonApple TV
The Once and Future Flash
star
7.92
6260 votes

#7 - The Once and Future Flash

Season 3 - Episode 19 - Aired 4/25/2017

Barry travels to the future to find out Savitar’s still unknown identity in the hopes of saving Iris. Upon his arrival in 2024, Barry encounters future versions of his Team Flash friends, who, following the death of Iris, have become very different people, profoundly impacted by their showdown with Savitar. It will be up to Barry to infuse a sense of hope back into the team, as he proves to be hero his future friends have been waiting for. Meanwhile, back in 2017, the hunt for Killer Frost continues.

Directors: Tom Cavanagh
Watch Now:AmazonApple TV
Shade
star
7.89
6419 votes

#8 - Shade

Season 3 - Episode 6 - Aired 11/15/2016

When Wally starts having dreams about being Kid Flash, Barry realizes he has to tell Wally, Iris and Joe about what happened to Wally in Flashpoint in order to keep him safe.

Directors: J.J. Makaro
Watch Now:AmazonApple TV
The New Rogues
star
7.86
6484 votes

#9 - The New Rogues

Season 3 - Episode 4 - Aired 10/25/2016

Barry continues to train Jesse and when a new meta human, Mirror Master, appears on the scene he lets her tag along. Mirror Master has teamed up with his old partner, Top, and is looking for Snart to even a score. Jesse is quick to join the chase but defies one of Barry's orders which results in disastrous consequences.

Watch Now:AmazonApple TV
The Wrath of Savitar
star
7.84
6318 votes

#10 - The Wrath of Savitar

Season 3 - Episode 15 - Aired 3/7/2017

While training with Barry, Wally starts to have visions of Savitar, which he hides from the team. A dangerous secret threatens Barry and Iris’ happiness.

Watch Now:AmazonApple TV
Flashpoint
star
7.80
6948 votes

#11 - Flashpoint

Season 3 - Episode 1 - Aired 10/4/2016

Barry is living his dream life – his parents are alive, he’s asked Iris West on a date and he can finally be a normal guy as Central City has another speedster, Kid Flash, running around saving the city. When Barry starts forgetting parts of his old life, the Reverse Flash taunts his nemesis and tells him that there will be serious repercussions for Barry and the ones he loves if he continues to live in this alternate universe. In addition to losing his memories, his powers will also start to fade. When disaster strikes, Barry must decide if he wants to continue to live in this world as Barry Allen or return to his universe as The Flash.

Directors: Jesse Warn
Watch Now:AmazonApple TV
Paradox
star
7.80
6623 votes

#12 - Paradox

Season 3 - Episode 2 - Aired 10/11/2016

Barry realizes the effects from Flashpoint are much greater than he thought. Meanwhile, Barry meets new co-worker Julian Albert and is surprised by Julian’s immediate disdain for Barry.

Directors: Ralph Hemecker
Watch Now:AmazonApple TV
Untouchable
star
7.78
6049 votes

#13 - Untouchable

Season 3 - Episode 12 - Aired 2/7/2017

Barry and the team at S.T.A.R. Labs work together to bring down Clive Yorkin, a criminal meta-human who is methodically killing people by causing them to decompose at an accelerated rate. Joe becomes his next target but it’s Iris who is caught in the crossfire. The Flash mentors Kid Flash and begins to elevate the newer speedster’s training to another level.

Directors: Rob Hardy
Watch Now:AmazonApple TV
Dead or Alive
star
7.77
6125 votes

#14 - Dead or Alive

Season 3 - Episode 11 - Aired 1/31/2017

H.R.’s past catches up with him when a bounty hunter with vibe powers named Gypsy arrives in Central City to bring him back to Earth-19 to stand trial for his crime. It turns out inter-dimensional travel is illegal on their Earth. H.R. surrenders but when Barry and Cisco find out that H.R.’s only hope would be to challenge Gypsy to a fight to the death, they intercede and Cisco offers to fight Gypsy instead.

Directors: Harry Jierjian
Watch Now:AmazonApple TV
Borrowing Problems from the Future
star
7.77
6092 votes

#15 - Borrowing Problems from the Future

Season 3 - Episode 10 - Aired 1/24/2017

Barry is tormented by his vision of the future where Iris is murdered by Savitar. When a criminal named Plunder shows up in Central City, Barry recalls the villain’s presence in his vision of the future and fears that if he catches Plunder, it will cement Iris’ fate. Confused about Barry’s hesitation to stop Plunder, Wally decides to step in as Kid Flash. Caitlin offers Julian a job.

Watch Now:AmazonApple TV
Attack on Central City (2)
star
7.75
6211 votes

#16 - Attack on Central City (2)

Season 3 - Episode 14 - Aired 2/28/2017

When Grodd and his army of gorillas bring the battle to Earth-1, The Flash and team must find a way to stop them before they destroy Central City. Gypsy returns to join the fight. Meanwhile, Jesse Quick decides she wants to stay with Wally on Earth-1.

Directors: Dermott Downs
Watch Now:AmazonApple TV
Abra Kadabra
star
7.75
5936 votes

#17 - Abra Kadabra

Season 3 - Episode 18 - Aired 3/28/2017

The Flash battles Abra Kadabra, a villain from the 64th Century, who makes him a tempting offer, release him and Abra Kadara will reveal Savitar’s true identity. Desperate to save Iris, Barry considers taking the deal but Gypsy breaches in to capture the villain for her own reasons and during the melee, Abra Kadabra manages to escape. Barry is furious that Gypsy interfered but Gypsy refuses to back down, forcing Cisco to take sides. Meanwhile, Julian is still a bit cold towards Caitlin but when she is severely injured in a battle with Gypsy, he rushes to her side.

Watch Now:AmazonApple TV
Monster
star
7.75
6412 votes

#18 - Monster

Season 3 - Episode 5 - Aired 11/1/2016

Desperate to understand what is happening to her, Caitlin visits her mother, Dr. Tannhauser, a renowned biomedical researcher, in the hopes that her mother can provide some answers about Caitlin's growing meta-human powers. However, when Dr. Tannhauser treats her daughter like a test subject, Caitlin grows cold and brings up past wounds causing the two to have a major blowout. Meanwhile, After a mysterious new meta-human attacks Central City, Barry tries to convince Julian to let him assist on the case.

Directors: C. Kim Miles
Writer: Zack Stentz
Watch Now:AmazonApple TV
Cause and Effect
star
7.75
5850 votes

#19 - Cause and Effect

Season 3 - Episode 21 - Aired 5/9/2017

Barry takes drastic measures to stop Savitar. Meanwhile, H.R. continues to push Tracy Brand to design the trap for Savitar and Killer Frost returns with an interesting proposal.

Directors: David McWhirter
Watch Now:AmazonApple TV
Magenta
star
7.75
6397 votes

#20 - Magenta

Season 3 - Episode 3 - Aired 10/18/2016

Barry and Team Flash are thrilled to reunite with Earth-2 Wells and Jesse. Wells confides to Barry and Caitlin that Jesse has all the powers of a speedster and has been saving people on his Earth. He is concerned about her safety and wants them to talk her out of using her powers. Meanwhile, Magenta, a new meta who can control metal, terrorizes the city.

Watch Now:AmazonApple TV
Attack on Gorilla City (1)
star
7.70
6214 votes

#21 - Attack on Gorilla City (1)

Season 3 - Episode 13 - Aired 2/21/2017

When Jesse Quick informs the team that her father has been abducted, Barry, Caitlin, Cisco and Julian voyage to Earth-2 on a rescue mission to save Harry from Gorilla City. As they trek through the forest, Barry and the team are immediately captured and brought to Grodd. Grodd tells them he needs their help to stop Solovar, the leader of Gorilla City, as Solovar wants to invade Earth-1. Meanwhile, back on Earth-1, Jesse and Kid Flash hit the streets to stop a metahuman that can control gravity, with H.R. and Joe guiding them from S.T.A.R. Labs.

Directors: Dermott Downs
Watch Now:AmazonApple TV
Into the Speed Force
star
7.60
6298 votes

#22 - Into the Speed Force

Season 3 - Episode 16 - Aired 3/14/2017

Desperate to stop Savitar and save his friends, Barry turns to the speed force for answers. H.R. gives Jesse some advice.

Directors: Gregory Smith
Watch Now:AmazonApple TV
Duet (2)
star
7.00
6549 votes

#23 - Duet (2)

Season 3 - Episode 17 - Aired 3/21/2017

Barry and team are surprised when Mon-El and Hank Henshaw arriive on their Earth carrying a comatose Supergirl who was whammied by the Music Meister. Unable to wake her up, they turn to Team Flash to save her. However, the Music Meister surprises The Flash and puts him in a similar coma, one that Team Flash can’t cure. Kara and Barry wake up without their powers in an alternate reality where life is like a musical and the only way to escape is by following the script, complete with singing and dancing, to the end.

Directors: Dermott Downs
Watch Now:Apple TV