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- "People call me XS. Every day, I hope to live up to the legacy of the Flash. But I've still got a long way to go."
- —Nora West-Allen[src]
was renewed for a fifth season by The CW on April 2, 2018. It premiered on October 9, 2018 and concluded on May 14, 2019. The season consisted of 22 episodes.
Matching wits with The Thinker, who by season's end had harnessed the powers of all twelve bus metas he created, stretched Team Flash to their limits, but with the help of some new allies, Barry Allen (aka The Flash) and company were able to put a stop to the Enlightenment and save Central City once again.
However, with the arrival of Barry and Iris' speedster daughter, Nora, who arrived from the future admitting to having made a "big mistake", things are anything but status quo. Will parenthood be the challenge that finally slows The Flash down?
- Grant Gustin as Barry Allen/The Flash/Savitar/Green Arrow
- Candice Patton as Iris West
- Danielle Panabaker as Dr. Caitlin Snow/Killer Frost
- Carlos Valdes as Cisco Ramon/Vibe
- Hartley Sawyer as Ralph Dibny/Elongated Man
- Danielle Nicolet as District Attorney Cecille Horton
- Jessica Parker Kennedy as Nora West-Allen/XS
- Chris Klein as Orlin Dwyer/Cicada
- Tom Cavanagh as Harrison Sherloque Wells, Professor Eobard Thawne/Reverse-Flash, Dr. Harrison Wolfgang Wells, and Dr. Harrison "Harry" Wells
- Jesse L. Martin as Detective/Captain Joe West
- Patrick Sabongui as Captain/Chief of Police David Singh
- Susan Walters as Dr. Carla Tannhauser
- Kyle Secor as Dr. Thomas Snow/Icicle
- Islie Hirvonen and Sarah Carter as Grace Gibbons/Cicada
- Lossen Chambers as Dr. Vanessa Ambres
- Klarc Wilson as Officer Jones
- Troy James as Peter Merkel/Rag Doll
- Phil LaMarr as Rag Doll (voice)
- Liam McIntyre as Mark Mardon/Weather Wizard
- Reina Hardesty as Joslyn Jackam/Weather Witch
- John Wesley Shipp as Dr. Henry Allen and The Flash
- Victoria Park as Kamilla Hwang
- Kimberly Williams-Paisley as Renee Adler, Harrison Sherloque Wells' first ex-wife, Harrison Sherloque Wells' second ex-wife, Harrison Sherloque Wells' fourth ex-wife, and Harrison Sherloque Wells' fifth ex-wife
|#||Episode name||Directed by||Story by||Teleplay by||Original airdate|
|1||""||David McWhirter||Todd Helbing & Sam Chalsen||October 9, 2018|
|After an unexpected guest from the future, Nora West-Allen, appears at their home, Barry and Iris, must figure out how to get her back to the future without disrupting the timeline, even more than she already has. Team Flash must work together to send Nora back, while simultaneously fighting off another villainous meta.|
|2||""||Kim Miles||Eric Wallace & Judalina Neira||October 16, 2018|
|As Barry helps his daughter, Nora, become a better speedster, he and Team Flash also track down a meta stealing high-tech weapons, only to cross paths with a new foe named Cicada, who is hunting the very same meta with nefarious intent.|
|3||""||Andi Armaganian||Jonathan Butler & Gabriel Garza||October 23, 2018|
|After Cicada's attack on the Flash, the team realizes they need to think outside the box to stop this dangerous new foe. Desperate to help her parents, Nora comes up with a plan that ultimately puts a member of Team Flash in danger. Meanwhile, Caitlin delves into her past.|
|4||""||Brent Crowell||Kelly Wheeler & Lauren Certo||October 30, 2018|
|Barry and Iris face the ultimate parenting test when Team Flash battles Spin, a savvy millennial armed with Meta-tech, and a dangerous agenda for their daughter, Nora. Ralph is feeling defeated until an unlikely source issue a challenge to help boost his confidence.|
|5||""||Phil Chipera||Thomas Pound & Sterling Gates||November 13, 2018|
|Nora lets something slip about the future that devastates Iris. In an attempt to distract his wife, Barry asks Iris to team up to stop a new meta, Rag Doll. Meanwhile, Caitlin learns something about her father.|
|6||""||Chris Peppe||Kristen Kim & Joshua V. Gilbert||November 20, 2018|
|Caitlin, Barry and Cisco learn something new about Caitlin’s father. Meanwhile, Iris and Sherloque follow a clue about Cicada.|
|7||""||Sarah Boyd||Jonathan Butler & Gabriel Garza||November 27, 2018|
|While Nora grapples with unresolved anger over her father’s disappearance in the future, Barry and Team Flash must stop a powerful new meta, Weather Witch, from killing her own father, Weather Wizard.|
|8||""||Tom Cavanagh||Todd Helbing & Lauren Certo||December 4, 2018|
|In the 100th episode, Barry and Team Flash come up with a plan to stop Cicada. However, the plan calls for Barry and Nora to travel back in time to gather some key necessities. However, Barry hesitates, concerned about his daughter seeing certain parts of his life. Meanwhile, Sherloque takes his concerns about Nora to Iris, and Caitlin turns up a key asset in the fight against Cicada.|
|9||""||Kevin Tancharoen||Eric Wallace & Sam Chalsen||December 9, 2018|
|When Barry Allen and Oliver Queen wake up one morning and realize they have swapped bodies with each other, the two set off to find out what disturbed the timeline to cause such a shift. However, things quickly go from bad to worse when they present their case to Team Flash and the gang doesn’t believe them. Barry and Oliver realize they need Supergirl's help and travel to Smallville on Earth-38 where they end up meeting Kara’s cousin, Clark Kent, and intrepid reporter, Lois Lane.|
|10||""||David McWhirter||Kelly Wheeler & Sterling Gates||January 15, 2019|
|While Nora grapples with the revelation that Thawne killed her grandmother, Team Flash must stop the formidable team-up of a newly sprung from jail Weather Witch and Silver Ghost, a new Meta-tech villain who can control engines and motorized technology. Meanwhile, Caitlin and Cisco discuss creating a meta-human cure.|
|11||""||Marcus Stokes||Judalina Neira & Thomas Pound||January 22, 2019|
|During a battle with Cicada, Nora is severely injured. Due to Cicada’s dampening powers, Nora’s speed healing isn’t working, leaving Barry and Iris scared for their daughter’s future. Upset about his injured child, The Flash is filled with rage and confronts Cicada in a brutal battle. Meanwhile, Killer Frost keeps interfering with Caitlin’s work on the cure.|
|12||""||Rebecca Johnson||Sam Chalsen & Kristen Kim||January 29, 2019|
|When Sherloque wants to use a memory machine on Barry and Nora to help gain access to Grace’s memories, Nora panics, fearing her parents will find out the secrets she’s been keeping from them. Nora secretly decides to use the machine on her own which ends in disaster after she gets trapped inside Grace’s mind. Barry and Iris go in after their daughter and Iris is brokenhearted by what she finds. Meanwhile, Ralph tricks Cisco into going out for a night out on the town.|
|13||""||Alexandra LaRoche||Jonathan Butler & Gabriel Garza||February 5, 2019|
|Barry and Ralph must go undercover as criminals in an illegal black market to purchase a device that could help them stop Cicada. Once inside, Barry and Ralph find their morality tested as they slip deeper into the criminal world, eventually having to choose between committing a crime, or losing the means to defeat one of their greatest foes. Meanwhile, Iris investigates a lead on Cicada’s whereabouts and ends up in a dangerous situation.|
|14||""||Rachel Talalay||Todd Helbing & Jeff Hersh||February 12, 2019|
|After Iris lands in serious danger, Nora races to save her mother. Barry puts the finishing touches on the meta-human cure, leaving Cisco with a rare night off so he decides to take Kamilla on a date.|
|15||""||Stefan Pleszczynski||Eric Wallace & Lauren Certo||March 5, 2019|
|When Gorilla Grodd attacks Central City, Barry and Team Flash find themselves teaming up with an unexpected ally to defeat – King Shark. However, when they hit a snag, they bring in Dr. Tanya Lamden to try to reach the man behind the shark, Shay Lamden.|
|16||""||Viet Nguyen||Zack Stentz||March 12, 2019|
|With the meta-human cure ready to use, Barry and Team Flash must figure out a way to subdue Cicada long enough to take it. Killer Frost steps in to help with the plan. Meanwhile, Joe eases back into work, and Nora isn't happy about the way her dad plans to stop Cicada.|
|17||""||Rob Greenlea||Kristen Kim & Sterling Gates||March 19, 2019|
|Team Flash finds out that a suburban mom named Vickie Bolen is in danger and they race to save her. Upon meeting her, they discover she’s a meta-human who is hiding her abilities from her family. Barry encourages Vickie to share her secret with her family, which makes Nora realize she needs to come clean with her parents about Thawne.|
|18||""||Danielle Panabaker||Judalina Neira & Kelly Wheeler||April 16, 2019|
|After discovering that Nora is working with Thawne, Barry and Iris disagree about how to handle their daughter in the wake of this shocking news. Team Flash isn't sure they can trust Nora, so they go through her journal to find out exactly how she came to work alongside their greatest nemesis.|
|19||""||Jeff Cassidy||Jonathan Butler & Gabriel Garza||April 23, 2019|
|When Icicle returns to enact the next phase of his devious plan, Caitlin and her mother, Dr. Carla Tannhauser, must resolve their long-combative relationship to defeat the icy monster. After Barry makes a big decision about their family without consulting her, Iris decides to take matters into her own hands.|
|20||""||Kristin Windell||Sam Chalsen & Joshua V. Gilbert||April 30, 2019|
|Barry continues to struggle with how he feels about Nora's betrayal. Brie Larvan, Joss Jackam and Peter Merkel return to Central City. Meanwhile, Cisco makes a bold decision.|
|21||""||Stefan Pleszczynski||Judalina Neira & Thomas Pound||May 7, 2019|
|Team Flash is on high alert after Cicada II threatens to unleash a dangerous virus that would put all meta-humans at risk.|
|22||""||Gregory Smith||Todd Helbing & Eric Wallace||May 14, 2019|
|Barry faces off with his oldest, and most formidable nemesis, Reverse-Flash.|
- This was the last season of to have Todd Helbing as the showrunner. He will be replaced by Eric Wallace in the next season.
- This was the first season of :
- To have two main antagonists, Orlin Dwyer and Grace Gibbons. They both shared the same moniker "Cicada" and the same mission.
- To have a female main antagonist.
- To have 22 episodes; all previous seasons consisted of 23 episodes.
- To not feature Wentworth Miller in any capacity.
- Where Emily Bett Rickards didn't reprise her Arrowverse role of Felicity Smoak.
- To not feature the Legends in any shape or form since their introduction.
- This was the only season of to feature Jessica Parker Kennedy and Chris Klein as series regulars.
- Before the season started, Wally West was confirmed to appear in three episodes. However, he only appeared in "" and "".
- ↑ "WB TV's Arrow, Flash, Supergirl, Black Lightning, Krypton, Legends of Tomorrow, Riverdale SDCC Panel Details" - Newsarama
- ↑ "'The Flash' Changing Showrunners for Season 6 (Exclusive)" - The Hollywood Reporter
- ↑ "The Flash: 12 spoilers for season 5, from Nora's secret to episode 100" - Digital Spy
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