The BEST episodes of The Flash (2014) season 4

Every episode of The Flash (2014) season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of The Flash (2014) season 4!

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
We Are The Flash
star
7.95
2847 votes

#1 - We Are The Flash

Season 4 - Episode 23 - Aired 5/22/2018

Team Flash gets help from a surprising ally in their battle against DeVoe.

Directors: David McWhirter
Watch Now:AmazonApple TV
Enter Flashtime
star
7.89
3218 votes

#2 - Enter Flashtime

Season 4 - Episode 15 - Aired 3/6/2018

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.

Directors: Gregory Smith
Watch Now:AmazonApple TV
Crisis on Earth-X (3)
star
7.82
3874 votes

#3 - Crisis on Earth-X (3)

Season 4 - Episode 8 - Aired 11/28/2017

Flash, Arrow, White Canary, Firestorm, and Alex attempt to return to Earth-1. Meanwhile, Felicity and Iris work together to free Kara before Eobard and Fuehrer Queen take out her heart and transplant it into Overgirl.

Directors: Dermott Downs
Watch Now:AmazonApple TV
Elongated Journey Into Night
star
7.81
4235 votes

#4 - Elongated Journey Into Night

Season 4 - Episode 4 - Aired 10/31/2017

Cisco is shocked when Gypsy’s father, Breacher, shows up on Earth-1. Breacher takes an immediate disliking to Cisco and decides to hunt him. Meanwhile, Barry runs into his old nemesis, Ralph Dibny.

Directors: Tom Cavanagh
Watch Now:AmazonApple TV
Don't Run
star
7.79
3518 votes

#5 - Don't Run

Season 4 - Episode 9 - Aired 12/5/2017

Amunet kidnaps Caitlin and puts meta-dampener handcuffs 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, The Thinker traps The Flash in a speedster-proof prison. With the clock ticking, The Team doesn’t have the time or resources to track both Caitlin and Barry so Iris is forced to choose who to save.

Watch Now:AmazonApple TV
The Trial of The Flash
star
7.75
3389 votes

#6 - The Trial of The Flash

Season 4 - Episode 10 - Aired 1/16/2018

As Barry’s trial for the murder of Clifford DeVoe begins, Iris and Joe must decide how far they are willing to go to keep Barry out of prison.

Directors: Philip Chipera
Watch Now:AmazonApple TV
Think Fast
star
7.75
2810 votes

#7 - Think Fast

Season 4 - Episode 22 - Aired 5/15/2018

When DeVoe assaults an A.R.G.U.S. facility to complete his Enlightenment Machine, Barry realizes the only way he can stop him is if he allows Cisco and Caitlin to accompany him into the facility. Still shaken by Ralph’s death, Barry isn’t sure he wants to risk any more of his friends’ lives and considers taking on DeVoe solo.

Directors: Viet Nguyen
Watch Now:AmazonApple TV
Lose Yourself
star
7.75
2956 votes

#8 - Lose Yourself

Season 4 - Episode 18 - Aired 4/17/2018

When Barry and Team Flash find a way to enter The Thinker’s lair, Ralph considers crossing a dangerous line to defeat DeVoe. Meanwhile, Joe is concerned by Harry’s recent behavior.

Watch Now:AmazonApple TV
Therefore I Am
star
7.72
3688 votes

#9 - Therefore I Am

Season 4 - Episode 7 - Aired 11/21/2017

Barry comes face to face with DeVoe. Devoe’s past is revealed through flashbacks. Meanwhile, Iris puts the final touches on the wedding, which is a week away.

Directors: David McWhirter
Watch Now:AmazonApple TV
True Colors
star
7.68
3249 votes

#10 - True Colors

Season 4 - Episode 13 - Aired 2/6/2018

After hearing that Amunet has struck a deal to buy all of the metahumans in Iron Heights, Barry must decide if he should expose his powers in order to save his cellmates. After a visit from an old friend, Ralph is reminded of his shady past and wonders if he’s really a changed man.

Directors: Tara Nicole Weyr
Watch Now:AmazonApple TV
Honey, I Shrunk Team Flash
star
7.67
3245 votes

#11 - Honey, I Shrunk Team Flash

Season 4 - Episode 12 - Aired 1/30/2018

A meta who can shrink anything he touches battles Team Flash. Cisco and Ralph get caught in his crossfire and are shrunk to miniature versions of themselves. Cecile realizes her pregnancy has caused her to have temporary powers and discovers she can hear other people’s thoughts, which unnerves Joe. Meanwhile, Barry meets someone with a mysterious connection to Henry Allen.

Directors: Chris Peppe
Watch Now:AmazonApple TV
The Flash Reborn
star
7.67
5098 votes

#12 - The Flash Reborn

Season 4 - Episode 1 - Aired 10/10/2017

With Barry in the speed force, Iris, Kid Flash, Joe, and Vibe have taken over protecting Central City. 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.

Directors: Glen Winter
Watch Now:AmazonApple TV
Luck Be a Lady
star
7.62
4411 votes

#13 - Luck Be a Lady

Season 4 - Episode 3 - Aired 10/24/2017

Barry and the team are hit by a string of bad luck and realize it is the handiwork of a new meta, Becky nicknamed Hazard, who has the ability to give others bad luck, while cashing in the benefits for herself. Meanwhile, Harry Wells returns to Earth-1 to give Wally a message from Jesse.

Watch Now:AmazonApple TV
Subject 9
star
7.61
3218 votes

#14 - Subject 9

Season 4 - Episode 14 - Aired 2/27/2018

Barry meets a powerful woman, Izzy whose abilities could help him in his battle with DeVoe. Meanwhile, after learning that DeVoe is targeting everyone who was on the bus, Ralph decides he doesn’t want to be a hero anymore, his only concern is staying alive. Harry offers to help Joe.

Directors: Ralph Hemecker
Watch Now:AmazonApple TV
Therefore She Is
star
7.61
2826 votes

#15 - Therefore She Is

Season 4 - Episode 20 - Aired 5/1/2018

Barry and Team Flash team up with Gypsy to try to thwart Thinker’s plan. Meanwhile, Cisco and Gypsy have a heart to heart talk about their relationship.

Directors: Rob Greenlea
Watch Now:AmazonApple TV
Fury Rogue
star
7.59
2873 votes

#16 - Fury Rogue

Season 4 - Episode 19 - Aired 4/24/2018

When Barry needs help transporting a dangerous meta, he calls on a new friend for help, Leo Snart. Meanwhile, Cisco becomes suspicious of Harry.

Directors: Rachel Talalay
Watch Now:AmazonApple TV
The Elongated Knight Rises
star
7.58
3269 votes

#17 - The Elongated Knight Rises

Season 4 - Episode 11 - Aired 1/23/2018

When a familiar villain returns to terrorize Central City, Ralph must rise up to defend the innocent while Barry is detained by his trial. Meanwhile, Barry searches for the strength to keep his optimism alive in the face of his new circumstances.

Watch Now:AmazonApple TV
Mixed Signals
star
7.58
4618 votes

#18 - Mixed Signals

Season 4 - Episode 2 - Aired 10/17/2017

Barry has his hands full when he takes on a dangerous meta who can control technology, while also confronting an obstacle in his personal life: the ramifications of abandoning Iris for six months to balance the Speed Force. Meanwhile, Gypsy breaches in for a hot date with Cisco, but she gets annoyed when his work keeps them apart.

Watch Now:Apple TV
Run, Iris, Run
star
7.56
3123 votes

#19 - Run, Iris, Run

Season 4 - Episode 16 - Aired 3/13/2018

Team Flash confront a new bus meta, Matthew Kim aka Melting Point. He has the ability to swap people’s DNA, so during a battle with Team Flash, he transfers Barry’s super speed to Iris. Now, with a new threat unleashed on Central City, Barry must act as the team leader while Iris takes on the mantle of superhero speedster in order to defeat their new foe.

Directors: Harry Jierjian
Writer: Eric Wallace
Watch Now:Apple TV
When Harry Met Harry…
star
7.55
3837 votes

#20 - When Harry Met Harry…

Season 4 - Episode 6 - Aired 11/14/2017

When collectors of Native American artifacts are attacked by a meta named Mina Chayton who can bring inanimate objects to life, Barry turns to a surprising ally for help. Determined to crack the identity of The Thinker, Harry enlists Cisco’s help to summon the ultimate think tank: “The Council of Wells’,” a roundtable of the brightest Harrison Wells’ from various Earths.

Directors: Brent Crowell
Watch Now:Apple TV
Null and Annoyed
star
7.54
2992 votes

#21 - Null and Annoyed

Season 4 - Episode 17 - Aired 4/10/2018

Barry and Ralph take different approaches to finding the remaining bus metas before DeVoe gets to them. However, Ralph’s cavalier attitude frustrates Barry and the two clash over what it means to be a hero. Meanwhile, Breacher returns to ask Cisco for a favor.

Directors: Kevin Smith
Watch Now:Apple TV
Harry and the Harrisons
star
7.48
2802 votes

#22 - Harry and the Harrisons

Season 4 - Episode 21 - Aired 5/8/2018

With DeVoe’s Enlightenment device nearly complete, in order to disable it The Flash and his team must put their faith in an unlikely ally, Amunet Black. Meanwhile, Harry hits an all-time low when the “Council of Wells” kicks him out but then Cisco introduces him to the “Council of Harrisons.”

Directors: Kevin Mock
Watch Now:Apple TV
Girls Night Out
star
7.31
3814 votes

#23 - Girls Night Out

Season 4 - Episode 5 - Aired 11/7/2017

Having received an ominous threat from her old boss, Amunet, Caitlin fears that her past time as Killer Frost may be back to haunt her. Felicity comes to Central City to help the girls celebrate Iris’s bachelorette party, while Cisco, Joe and the guys take Barry out for a night on the town.

Directors: Laura Belsey
Watch Now:Apple TV