The BEST Episodes of The Flash

Every episode ever - ranked by fan votes!

Last Updated: Sep 19, 2021

Network: CBS

Central City Police forensic scientist Barry Allen's crime lab is struck by lightning. Allen's electrified body is flung into and shatters a cabinet of chemicals, which are both electrified and forced to interact with each other and with his physiology when they come into physical contact with his body. He soon discovers that the accident has changed his body's metabolism and as a result he has gained the ability to move at superhuman speed. Barry Allen has become the Flash.

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Shroud of Death

#1 - Shroud of Death

Season 1 - Episode 8 - Aired Nov 29, 1990

A judge is killed, the killer sends the victim a part of a medal before he dies. When a former DA is killed, Barry finds a connection. Garfield was the arresting officer on the case, when his girlfriend/fiancée is shot, Garfield takes it personally. Flash must stop him before he crosses the line. Tina gets a job offer that would send her to California.

star 8.01
484 votes
Writers: Michael Reaves
Ghost in the Machine

#2 - Ghost in the Machine

Season 1 - Episode 9 - Aired Dec 13, 1990

The Ghost, a villain from 1955 emerges from a deep freeze, intent on continuing his plan to extort money from the city. Nightshade comes out of retirement to help the Flash stop him.

star 7.97
555 votes
Directors: Bruce Bilson
Writers: Howard Chaykin, John Francis Moore

#3 - Alpha

Season 1 - Episode 21 - Aired May 11, 1991

An android built by the government to use an assassin refuses to obey her orders. She escapes, and is befriended by Tina and Barry.

star 7.91
191 votes
Writers: Gail Morgan Hickman
The Trial of the Trickster

#4 - The Trial of the Trickster

Season 1 - Episode 22 - Aired May 18, 1991

With the help of an insane admirer who wants to be his sidekick, the Trickster escapes from police custody and places the Flash under his mind control.

star 7.71
200 votes
Directors: Danny Bilson
Writers: Howard Chaykin, John Francis Moore
Fast Forward

#5 - Fast Forward

Season 1 - Episode 15 - Aired Feb 27, 1991

Barry considers moving, after Pike is acquitted of his brother's murder. Pike launches a missile to kill the Flash, who is sent 10 years into the future where Pike is now Mayor. The Flash's powers are now unstable and Tina refuses to help him because she blames him for leaving. He's got to find a way to get back to his own time.

star 7.63
254 votes
Directors: Gus Trikonis
Writers: Gail Morgan Hickman
Deadly Nightshade

#6 - Deadly Nightshade

Season 1 - Episode 16 - Aired Mar 30, 1991

There's a new vigilante in town, the Deadly Nightshade, who fights crime by killing criminals. The Flash and the original Nightshade team up to take him down.

star 7.63
168 votes
Directors: Bruce Bilson
Writers: Howard Chaykin, John Francis Moore
Good Night, Central City

#7 - Good Night, Central City

Season 1 - Episode 20 - Aired May 4, 1991

A small time crook gets a hold of a device that puts people to sleep. He goes on a spree while the people are unconscious. He has a plan to knock out the entire city, it's up to the Flash to stop him.

star 7.58
183 votes
Directors: Mario Azzopardi
Writers: Jim Trombetta
Out of Control

#8 - Out of Control

Season 1 - Episode 2 - Aired Oct 14, 1990

Homeless people are disappearing/dying. But no one can find the bodies. Tina's friend comes to town for a visit.

star 7.58
742 votes
Directors: David Nutter
Writers: Greg Berlanti
Be My Baby

#9 - Be My Baby

Season 1 - Episode 14 - Aired Feb 21, 1991

Barry tries to help a young woman. She found out about her husband's criminal life, and is trying to escape from him. She takes their daughter with her, but he wants them back.

star 7.57
183 votes
Directors: Bruce Bilson
Writers: Jule Selbo
Watching the Detectives

#10 - Watching the Detectives

Season 1 - Episode 3 - Aired Oct 18, 1990

The corrupt District Attorney Thomas Castillo hires a private eye named Megan Lockhart to find out the Flash's identity. He then blackmails Barry to work for him, or he'll expose his secret.

star 7.57
712 votes
Directors: Gus Trikonis
Writers: Howard Chaykin, John Francis Moore
Sins of the Father

#11 - Sins of the Father

Season 1 - Episode 6 - Aired Nov 8, 1990

A bank robber escapes from prison. He goes back to Central City to get his money and revenge on the cop who busted him, Henry Allen, Barry's father.

star 7.56
596 votes
Directors: Jonathan Sanger
Writers: Stephen Hattman
Captain Cold

#12 - Captain Cold

Season 1 - Episode 17 - Aired Apr 6, 1991

The Flash is targeted by a hit-man who uses cold based weaponry.

star 7.51
170 votes
Writers: Gail Morgan Hickman
The Trickster

#13 - The Trickster

Season 1 - Episode 12 - Aired Feb 7, 1991

An insane magician wreaks havoc throughout Central City as the maniacally clever Trickster.

star 7.50
195 votes
Directors: Danny Bilson
Writers: Howard Chaykin, John Francis Moore
Double Vision

#14 - Double Vision

Season 1 - Episode 5 - Aired Nov 1, 1990

Someone spreads graffiti, and messages asking to meet "Flash" at a church. Barry goes to the church. Shortly after that, he begins to experience black outs and memory losses.

star 7.46
600 votes
Directors: Gus Trikonis
Writers: Jim Trombetta
Child's Play

#15 - Child's Play

Season 1 - Episode 7 - Aired Nov 15, 1990

A reporter is killed as he's researching a drug story. Barry tries to help two homeless kids.

star 7.45
572 votes
Writers: Howard Chaykin, John Francis Moore
Honor Among Thieves

#16 - Honor Among Thieves

Season 1 - Episode 4 - Aired Oct 25, 1990

Central City Museum prepares to receive a valuable historical object. A group of specialists try to steal it.

star 7.43
600 votes
Writers: Danny Bilson, Milo Bachman, Paul DeMeo
Done with Mirrors

#17 - Done with Mirrors

Season 1 - Episode 19 - Aired Apr 27, 1991

A battery is stolen by a criminal calling himself the Mirror Master. He soon steals a crystal from Star Labs. Tina will get fired if they can't recover the crystal. Tina's mother comes for a visit, and an old friend of Barry's also stirs up trouble.

star 7.40
191 votes
Directors: Danny Bilson
Writers: Howard Chaykin, John Francis Moore
Tina, Is That You?

#18 - Tina, Is That You?

Season 1 - Episode 13 - Aired Feb 14, 1991

Barry is having trouble sleeping. Tina tries to use bio-feedback to help him, but it back fires on Tina. She joins a gang, and she's able to hold Flash at bay with her knowledge of his strengths and weaknesses. Barry has got to find a way to save his friend.

star 7.38
158 votes
Writers: David L. Newman
Sight Unseen

#19 - Sight Unseen

Season 1 - Episode 10 - Aired Jan 10, 1991

An invisible man gets into Star Labs, and releases a neurotoxin with Tina inside the lab. Then he starts killing scientists who worked on the project. Flash must find the invisible man and save his friend.

star 7.33
253 votes
Writers: John Vorhaus

#20 - Pilot

Season 1 - Episode 1 - Aired Sep 20, 1990

A laboratory accident endows a police scientist with the ability to move at superhuman speed which he uses to battle a menacing gang as a superhero.

star 7.20
851 votes
Directors: Robert Iscove
Writers: Danny Bilson
Twin Streaks

#21 - Twin Streaks

Season 1 - Episode 18 - Aired Apr 13, 1991

A scientist and his business partner are trying to develop a being with super speed, their attempts fail. They manage to clone the Flash. Their creation learns quickly, but is emotional moral equivalent of a child. Barry must stop his twin.

star 7.20
197 votes
Writers: Stephen Hattman
Beat the Clock

#22 - Beat the Clock

Season 1 - Episode 11 - Aired Jan 31, 1991

A jazz musician friend of Julio's is about to be executed. An hour before the execution, a friend calls and says he has evidence that could exonerate their friend. Before Barry can contact him, he disappears. They have less than an hour to save a condemned man.

star 6.94
212 votes
Directors: Mario Azzopardi
Writers: Jim Trombetta