The BEST Episodes of The Flash

Every episode ever - ranked by fan votes!

Last Updated: Nov 5, 2019

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.

Fast Forward

#1 - Fast Forward

Season 1 - Episode 15

Jay's killer, Nicholus Pike, is released from jail and blames the Flash for Jay's death. He sets the Flash up by using a heat seeking bomb on him, but something goes awry. Instead of killing the Flash, it sends him into the future where Pike is in charge and outlaws anyone from mentioning the Flash.

star 8.43
125 votes
Directors: Gus Trikonis
Writers: Gail Morgan Hickman
Ghost in the Machine

#2 - Ghost in the Machine

Season 1 - Episode 9

Barry befriends an african american who was once a super hero that defeated a terrorist called the ghost who blackmailed the city through television sets when the presumed dead crimmnal is defrosted the night shade is back in buisness

star 8.31
346 votes
Directors: Bruce Bilson
Writers: Howard Chaykin, John Francis Moore
Good Night, Central City

#3 - Good Night, Central City

Season 1 - Episode 20

When a ""presumed to be dead"" criminal's body disappears, Barry is suspected. The criminal has invented a machine that makes anyone who hears it's strange sound waves fall into a deep sleep.

star 8.26
84 votes
Directors: Mario Azzopardi
Writers: Jim Trombetta
Shroud of Death

#4 - Shroud of Death

Season 1 - Episode 8

Pieces of a broken medallion are the only clue to an unknown assassin who is on a deadly rampage in central city.

star 8.23
359 votes
Writers: Michael Reaves
Sins of the Father

#5 - Sins of the Father

Season 1 - Episode 6

A murderer escapes from prison to find his loot and kill Barry's father, the cop who put him away.

star 8.18
388 votes
Directors: Jonathan Sanger
Writers: Stephen Hattman
The Trial of the Trickster

#6 - The Trial of the Trickster

Season 1 - Episode 22

The Trickster escapes from his trial and brainwashes the Flash.

star 8.03
99 votes
Directors: Danny Bilson
Writers: Howard Chaykin, John Francis Moore
Child's Play

#7 - Child's Play

Season 1 - Episode 7

An orphan boy has information that incriminates a 1960s cult figure who is trying to make a comeback.

star 8.01
364 votes
Writers: Howard Chaykin, John Francis Moore
Watching the Detectives

#8 - Watching the Detectives

Season 1 - Episode 3

A corrupt DA hires Megan Lockhart to find out the Flash's identity. Then he blackmails Barry to work for him, or he'll expose his secret.

star 8.00
445 votes
Directors: Gus Trikonis
Writers: John Francis Moore, Howard Chaykin
Deadly Nightshade

#9 - Deadly Nightshade

Season 1 - Episode 16

The Flash and the Nightshade team up once again as they go up against a nightshade imposter.

star 8.00
97 votes
Directors: Bruce Bilson
Writers: John Francis Moore, Howard Chaykin
Out of Control

#10 - Out of Control

Season 1 - Episode 2

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

star 8.00
499 votes
Directors: David Nutter
Writers: Greg Berlanti
Be My Baby

#11 - Be My Baby

Season 1 - Episode 14

Barry must protecting a woman and her child from her Criminal ex-husband.

star 7.99
88 votes
Directors: Bruce Bilson
Writers: Jule Selbo
Honor Among Thieves

#12 - Honor Among Thieves

Season 1 - Episode 4

While arranging security at the Central City Museum, Barry is reunited with an old girlfriend and a former mentor.

star 7.98
392 votes
Writers: Milo Bachman, Danny Bilson, Paul DeMeo
Alpha

#13 - Alpha

Season 1 - Episode 21

Barry and Tina befriend an Android who's running from a group of assassins wanting to use her as a deadly weapon.

star 7.98
93 votes
Writers: Gail Morgan Hickman
Double Vision

#14 - Double Vision

Season 1 - Episode 5

A mad scientist uses the Flash as a supernatural force.

star 7.97
392 votes
Directors: Gus Trikonis
Writers: Jim Trombetta
Captain Cold

#15 - Captain Cold

Season 1 - Episode 17

Captain Cold, who freezes his victims to death, is contracted to kill the Flash.

star 7.86
100 votes
Writers: Gail Morgan Hickman
Done with Mirrors

#16 - Done with Mirrors

Season 1 - Episode 19

Barry meets an old classmate and gets involved in a scheme to rip off Star Labs.

star 7.77
93 votes
Directors: Danny Bilson
Writers: John Francis Moore, Howard Chaykin
Tina, Is That You?

#17 - Tina, Is That You?

Season 1 - Episode 13

When Barry has nightmares about Tina betraying him, she puts them both under her scanner; but something goes terribly wrong. His dreams are transferred into her mind and now she thinks that she is a gang member.

star 7.67
89 votes
Writers: David L. Newman
The Trickster

#18 - The Trickster

Season 1 - Episode 12

Barry must protect his old girlfriend, Megan Lockhart, from an obsessed, maniacal criminal disguised as The Trickster.

star 7.67
98 votes
Directors: Danny Bilson
Writers: John Francis Moore, Howard Chaykin
Twin Streaks

#19 - Twin Streaks

Season 1 - Episode 18

A scientist clones Barry. The clone is physically perfect but emotionally it is still a child.

star 7.65
98 votes
Writers: Stephen Hattman
Sight Unseen

#20 - Sight Unseen

Season 1 - Episode 10

Barry finds himself up against an unseen criminal who traps Tina and her boss in the lab.

star 7.58
102 votes
Writers: John Vorhaus
Pilot

#21 - Pilot

Season 1 - Episode 1

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 7.52
297 votes
Directors: Robert Iscove
Writers: Danny Bilson
Beat the Clock

#22 - Beat the Clock

Season 1 - Episode 11

When Julio's old friend - a jazz musician accused of killing his wife years ago - is scheduled for execution, Barry and Julio race against the clock to prove his innocence.

star 7.44
89 votes
Directors: Mario Azzopardi
Writers: Jim Trombetta