8.5/104 votes#1 - It's My Party and I'll Die If I Want To
Season 9 Episode 9 - Aired 4/26/2023
Team Flash throws a surprise birthday party for Barry, but things go terribly awry when Ramsey Rosso crashes the festivities.
Director: Danielle Panabaker
Writer: Sam Chalsen
8.4/1023 votes#2 - Elseworlds (I)
Season 5 Episode 9 - Aired 12/9/2018
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. The crossover continues on Arrow S07E09 Elseworlds (II) and Supergirl S04E09 Elseworlds (III).
Director: Kevin Tancharoen
Writer: Sam Chalsen
8.0/1020 votes#3 - Think Fast
Season 4 Episode 22 - Aired 5/15/2018
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.
Director: Viet Nguyen
Writer: Sam Chalsen
7.9/1021 votes#4 - All's Wells That Ends Wells
Season 7 Episode 1 - Aired 3/2/2021
When an experiment to save Barry's speed backfires, Nash Wells searches for a way to save The Flash and comes up with a dangerous plan. Meanwhile, Iris makes a startling realization inside the Mirrorverse and Cecile faces off with Rosa Dillon.
Director: Geoff Shotz
Writer: Sam Chalsen
7.8/1025 votes#5 - Don't Run
Season 4 Episode 9 - Aired 12/5/2017
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.
Director: Stefan Pleszczynski
Writer: Sam Chalsen
7.8/105 votes#6 - A New World (4)
Season 9 Episode 13 - Aired 5/24/2023
The Flash, the fastest man alive, is tasked with his greatest challenge yet, to save the timeline and save existence. Friends old and new gather for an epic battle to save Central City, one last time.
Director: Vanessa Parise
Writer: Sam Chalsen
7.5/1018 votes#7 - Honey, I Shrunk Team Flash
Season 4 Episode 12 - Aired 1/30/2018
A meta who can shrink anything he touches battles Team Flash. Cisco and Ralph get caught in his crossfire and are shrunk to miniature versions of themselves. Cecile realizes her pregnancy has caused her to have temporary powers and discovers she can hear other people’s thoughts, which unnerves Joe. Meanwhile, Barry meets someone with a mysterious connection to Henry Allen.
Director: Chris Peppe
Writer: Sam Chalsen
7.4/1012 votes#8 - Deliverance
Season 2 Episode 7 - Aired 11/3/2014
Abbie and Ichabod learn that Katrina is in imminent danger and race against the clock to help her.
Director: Nick Copus
Writer: Sam Chalsen
7.4/1030 votes#9 - Nora
Season 5 Episode 1 - Aired 10/9/2018
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.
Director: David McWhirter
Writer: Sam Chalsen
7.3/107 votes#10 - Armageddon (3)
Season 8 Episode 3 - Aired 11/30/2021
Barry meets Black Lightning at the Hall of Justice after things take a dire turn with Despero. Iris suspects something is off with Despero's vision of the future so she seeks help from a powerful ally.
Director: Chris Peppe
Writer: Sam Chalsen
7.0/1014 votes#11 - Memorabilia
Season 5 Episode 12 - Aired 1/29/2019
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.
Director: Rebecca Johnson
Writer: Sam Chalsen
6.8/1012 votes#12 - Gone Rogue
Season 5 Episode 20 - Aired 4/30/2019
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.
Director: Kristin Windell
Writer: Sam Chalsen
6.8/1012 votes#13 - A Flash of the Lightning
Season 6 Episode 2 - Aired 10/15/2019
Faced with the news of his impending death, Barry's resiliency suffers as he struggles to fight fate. Meanwhile, Cecile's career as a D.A. conflicts with her identity when she crosses paths with a villainous meta-human.
Director: Chris Peppe
Writer: Sam Chalsen
6.7/109 votes#14 - Growing Pains
Season 7 Episode 7 - Aired 4/13/2021
When a mysterious ice powered enemy frames Frost for a brutal crime, she must find a way to clear her name; Barry and Iris have a surprise houseguest, and Joe continues to deal with Kristen Kramer.
Director: Alexandra La Roche
Writer: Sam Chalsen
6.6/1019 votes#15 - Luck Be a Lady
Season 4 Episode 3 - Aired 10/24/2017
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.
Director: Armen V. Kevorkian
Writer: Sam Chalsen
6.5/1011 votes#16 - Death of the Speed Force
Season 6 Episode 14 - Aired 3/10/2020
Kid Flash returns to Central City with a Zen attitude and new tricks up his sleeve. While thrilled to see his family again, Wally confides to Barry that he returned because he thinks there is something wrong with the speed force. Meanwhile, Cisco returns from his fact-finding mission across Earth-Prime.
Director: Brent Crowell
Writer: Sam Chalsen
6.3/107 votes#17 - Marathon
Season 6 Episode 10 - Aired 2/4/2020
After "The Citizen" prints an explosive story, Iris' life is threatened; refusing to hide from her attackers, Iris sets out to expose a dangerous organization; Barry must face the consequences of the Crisis and fulfill Oliver Queen's wish for him.
Director: Stefan Pleszczynski
Writer: Sam Chalsen
6.2/106 votes#18 - The Man in the Yellow Tie
Season 8 Episode 18 - Aired 6/15/2022
With a new speedster in town, The Flash gets much more than he bargained for, meanwhile Cecile's powers experience a growth spurt allowing her to aid Team Flash on an entirely different level.
Director: Marcus Stokes
Writer: Sam Chalsen
6.1/107 votes#19 - Dead Men Tell No Tales (II)
Season 3 Episode 5 - Aired 10/29/2015
With Booth and Brennan in tow, Abbie and Crane set out to prove that supernatural forces are at play when a mysterious death plagues the FBI. As Pandora unleashes a force to awaken the dangerous Red Coast General Howe, both teams must find a way to save the town from the British Army of the Undead. Can the power of Booth and Brennan combined with Abbie and Crane be enough to stop Pandora’s evil forces? The crossover starts on Bones S11E05 The Resurrection in the Remains (I).
Director: Russell Lee Fine
Writer: Sam Chalsen
6.1/109 votes#20 - Dawn's Early Light
Season 3 Episode 16 - Aired 3/25/2016
As The Hidden One grows stronger, Crane must examine his past with Betsy Ross to find the key to stopping him. Meanwhile, Jenny wonders if she can ever have a relationship with her father, and Abbie faces a hard decision as things with Reynolds become more strained.
Director: Paul A. Edwards
Writer: Sam Chalsen
5.9/109 votes#21 - Dark Mirror
Season 3 Episode 13 - Aired 3/4/2016
Ichabod discovers that the creature that inspired the stories of the Jersey Devil. Meanwhile, Joe and Jenny reach a possible hurdle in their relationship.
Director: Sylvain White
Writer: Sam Chalsen
5.9/108 votes#22 - The People vs. Ichabod Crane
Season 4 Episode 4 - Aired 1/27/2017
A monster fashioned to make its victims live out their most haunting memories strikes D.C.
Director: Jim O'Hanlon
Writer: Sam Chalsen
5.7/109 votes#23 - Masquerade
Season 7 Episode 13 - Aired 6/15/2021
Cecile is forced to confront her past in order to break free from a psychic prison. Meanwhile, Chester takes over for Cisco but makes a mistake that puts Barry in serious danger. Joe investigates Kristen Kramer's old military ties and discovers an unsettling truth.
Director: Rachel Talalay
Writer: Sam Chalsen
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Sam Chalsen Ratings Summary
"It's My Party and I'll Die If I Want To" is the best rated episode written by Sam Chalsen. It scored 8.5/10 based on 4 votes. It was directed by Danielle Panabaker. It aired on 4/26/2023 and is rated 0.1 points higher than their second-best episode, "Elseworlds (I)".