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The Flash Season 4 Episodes
Season 4 Episode Guide
23 Episodes 2017 - 2018
Episode 1
The Flash Reborn
Tue, Oct 10, 201741 mins
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.
Episode 2
Mixed Signals
Tue, Oct 17, 201742 mins
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.
Episode 3
Luck Be a Lady
Tue, Oct 24, 201742 mins
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.
Episode 4
Elongated Journey Into Night
Tue, Oct 31, 201741 mins
Gypsy's father, Breacher, takes an immediate disliking to Cisco and decides to hunt him; Barry runs into his old nemesis, Ralph Dibny.
Episode 5
Girls Night Out
Tue, Nov 7, 201741 mins
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.
Episode 6
When Harry Met Harry...
Tue, Nov 14, 201742 mins
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.
Episode 7
Therefore I Am
Tue, Nov 21, 201742 mins
Barry comes face to face with DeVoe, whose past is revealed through flashbacks.
Episode 8
Crisis on Earth-X, Part 3
Tue, Nov 28, 201742 mins
Barry (guest star Grant Gustin) and Iris's (guest star Candice Patton) wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold (guest star Wentworth Miller), The Ray (guest star Russell Tovey), Felicity Smoak (guest star Emily Bett Rickards), Iris West and Alex Danvers (Chyler Leigh) to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow (guest star Stephen Amell), Supergirl (Melissa Benoist), The Flash (guest star Grant Gustin) and White Canary (guest star Caity Lotz) - lead their teams into battle to save the world.
Episode 9
Don't Run
Tue, Dec 5, 201741 mins
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.
Episode 10
The Trial of The Flash
Tue, Jan 16, 201842 mins
Joe and Iris must decide how far they're willing to go to keep Barry out of prison as his trial for the murder of Clifford DeVoe begins.
Episode 11
The Elongated Knight Rises
Tue, Jan 23, 201842 mins
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.
Episode 12
Honey, I Shrunk Team Flash
Tue, Jan 30, 201842 mins
A meta who can shrink people battles Team Flash; Cisco and Ralph get in the crossfire and become miniature selves; Cecile's pregnancy gives the power to hear other people's thoughts, worrying Joe; Barry meets someone with a mysterious connection to Henry Allen.
Episode 13
True Colors
Tue, Feb 6, 201842 mins
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.
Episode 14
Subject 9
Tue, Feb 27, 201842 mins
Barry meets a powerful woman whose abilities could help him in his battle with De Voe. Meanwhile after learning that De Voe 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 Cecile, with her "problem", with Joe.
Episode 15
Enter Flashtime
Tue, Mar 6, 201841 mins
When a nuclear bomb detonates in 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.
Episode 16
Run, Iris, Run
Tue, Mar 13, 201841 mins
Team Flash confronts a new bus meta, Matthew. Otherwise known as Melting Point, the meta has the ability to swap people's DNA. During a battle with the team, Matthew transfers Barry's super speed to Iris, giving her the powers of the Flash. Hence, when a new threat is unleashed on Central City, Barry must act as the team leader, while Iris takes over as a speedster in order to defeat their new foe.
Episode 17
Null and Annoyed
Tue, Apr 10, 201842 mins
Team Flash try to track down Null, a jewel thief who was granted the power to manipulate gravity as part of Clifford DeVoe's "bus meta" experiment.
Episode 18
Lose Yourself
Tue, Apr 17, 201842 mins
Barry and the team find a way into the Thinker's lair; Ralph considers crossing a dangerous line to defeat him; Joe is concerned by Harry's recent behavior.
Episode 19
Fury Rogue
Tue, Apr 24, 201842 mins
When Barry needs help transporting a dangerous meta, he calls on an old friend for help - Leo Snart AKA Citizen Cold. Meanwhile, Cisco becomes suspicious of Harry.
Episode 20
Therefore She Is
Tue, May 1, 201842 mins
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.
Episode 21
Harry and the Harrisons
Tue, May 8, 201842 mins
The Flash and his team put their faith in an unlikely ally, Amunet Black, to defeat DeVoe; Harry hits an all-time low when the "Council of Wells" kicks him out but then Cisco introduces him to the "Council of Harrisons."
Episode 22
Think Fast
Tue, May 15, 201841 mins
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.
Episode 23
We Are the Flash
Tue, May 22, 201842 mins
The team gets help from a surprising ally in their battle against DeVoe.
