The Flash

10 Worst Episodes of The Flash

After a particle accelerator causes a freak storm, CSI Investigator Barry Allen is struck by lightning and falls into a coma. Months later he awakens with the power of super speed, granting him the ability to move through Central City like an unseen guardian angel. Though initially excited by his newfound powers, Barry is shocked to discover he is not the only "meta-human" who was created in the wake of the accelerator explosion -- and not everyone is using their new powers for good. Barry partners with S.T.A.R. Labs and dedicates his life to protect the innocent. For now, only a few close friends and associates know that Barry is literally the fastest man alive, but it won't be long before the world learns what Barry Allen has become...The Flash.

Written by Sophie and last updated on jun 26, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

The Flash - S9E2

#10 - Hear No Evil (Season 9 - Episode 2)

Barry feels guilty for what happened to Caitlin, and Mark comes up with a plan that makes everyone skeptical. Meanwhile, Red Death looms in Central City and commands that failure is not an option. Joe asks Cecile to make a choice that leads Cecile to think about the greater good. Allegra and Chester take a step in a new direction. Lastly, old friends pay an unexpected visit to S.T.A.R. Labs.

The episode was rated 6.90 from 405 votes.

The Flash - S7E11

#9 - Family Matters (2) (Season 7 - Episode 11)


Barry and Iris come together to try and stop a dangerous force from destroying Central City.

The episode was rated 6.87 from 883 votes.

The Flash - S9E3

#8 - Rogues of War (Season 9 - Episode 3)

Barry and Iris start to put together the pieces of what's happening in Central City and believe they know what the Rogues are after. Team Flash works together and recruits some unlikely allies to help, and the plan does not go as Team Flash expects. Meanwhile, Allegra does her best to avoid having a conversation with Chester.

The episode was rated 6.87 from 425 votes.

The Flash - S9E12

#7 - A New World: Chances (3) (Season 9 - Episode 12)


Team Flash works together to figure out how to protect Barry, all while being very careful who they trust. Cecile is skeptical of the plan after an unsuccessful attempt. Khione's confidence in Chester enables him to convince Cecile to try one more time.

The episode was rated 6.81 from 134 votes.

The Flash - S9E5

#6 - Mask of the Red Death (2) (Season 9 - Episode 5)

As the Red Death wreaks havoc on Central City, Barry and Iris come up with a plan and turn to Cecile for help. Barry is faced with what he thinks was his greatest mistake and the Red Death's greatest success. Khione wants to help Team Flash, but Barry can't risk losing her. Joe gives Barry a much-needed pep talk.

The episode was rated 6.79 from 386 votes.

The Flash - S7E14

#5 - Rayo De Luz (Season 7 - Episode 14)


When Ultraviolet returns to Central City, Allegra is determined to find her cousin and change her heart. Meanwhile, Joe finds evidence that Kristen Kramer may not be the good cop she appears to be.

The episode was rated 6.77 from 802 votes.

The Flash - S9E4

#4 - Mask of the Red Death (1) (Season 9 - Episode 4)

The Flash is forced to make an impossible choice. With the power out in the city, Team Flash calls upon the Rogue Squad to help as Iris is visited by an old friend. Joe and Cecile work on finding a balance.

The episode was rated 6.64 from 401 votes.

The Flash - S9E7

#3 - Wildest Dreams (Season 9 - Episode 7)


Iris is visited by Nia Nal, as she needs Iris' help. When Iris and Nia fall into a fever dream and explore different possibilities for their lives, Barry, Chester, Allegra, and Cecile desperately try to help them. Meanwhile, Mark entertains Khione, but they have different ideas of what is fun, leaving Khione to feel that Mark is trying to make her something she is not.

The episode was rated 6.52 from 356 votes.

The Flash - S9E6

#2 - The Good, the Bad and the Lucky (Season 9 - Episode 6)

As Barry and Iris prepare for their new life, luck changes for those in Central City. Cecile takes on a case with Allegra's help, involving a string of unfortunate – and highly unexpected – events. Meanwhile, Chester and the team work with Khione to figure out her abilities.

The episode was rated 6.46 from 370 votes.

The Flash - S9E8

#1 - Partners in Time (Season 9 - Episode 8)


A seemingly simple mold inspection at S.T.A.R. Labs leads to unexpected time anomalies. Barry and Iris try to make sense of the confusion - and figure out how to get back to their reality. Chester admits a secret to Allegra, which makes things awkward between the two, and Allegra relies on Cecile to act as a buffer. Meanwhile, Khione meets with an old friend of Team Flash.

The episode was rated 6.45 from 318 votes.

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