8.5/1021 votes#1 - What's Past Is Prologue
Season 5 Episode 8 - Aired 12/4/2018
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.
Director: Tom Cavanagh
Writer: Lauren Certo
8.3/103 votes#2 - Trial by Fire: Episode 5
Season 2 Episode 5 - Aired 11/11/2016
Vixen, Kuasa, the Atom, and Black Canary face Eshu on the streets of Detroit... and one of them will die.
Director: Curt Geda
Writer: Lauren Certo
8.0/103 votes#3 - Trial by Fire: Episode 1
Season 2 Episode 1 - Aired 10/13/2016
Vixen teams up with The Flash and Firestorm to save her city.
Director: Curt Geda
Writer: Lauren Certo
8.0/103 votes#4 - Trial by Fire: Episode 3
Season 2 Episode 3 - Aired 10/28/2016
Vixen learns her enemy may have more power than she does.
Director: Curt Geda
Writer: Lauren Certo
7.9/107 votes#5 - Family Reunion: Episode 1
Season 1 Episode 1 - Aired 8/25/2015
Mari McCabe, an orphan young woman, is chased through the city exactly 3 days after she was bailed out of jail by her foster father. She squares off with The Flash and Arrow.
Director: James Tucker
Writer: Lauren Certo
7.9/1021 votes#6 - 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 Wing Shotz
Writer: Lauren Certo
7.7/103 votes#7 - Trial by Fire: Episode 2
Season 2 Episode 2 - Aired 10/21/2016
Vixen investigates a stolen pendant from her family's past.
Director: Curt Geda
Writer: Lauren Certo
7.7/103 votes#8 - Trial by Fire: Episode 4
Season 2 Episode 4 - Aired 11/4/2016
Vixen goes totem hunting in Star City with assistance from some super-helpful friends.
Director: Curt Geda
Writer: Lauren Certo
7.6/105 votes#9 - Family Reunion: Episode 6
Season 1 Episode 6 - Aired 9/29/2015
Mari embraces her destiny as Vixen.
Director: James Tucker
Writer: Lauren Certo
7.5/1033 votes#10 - Rupture
Season 2 Episode 20 - Aired 5/3/2016
Zoom arrives back on Earth-1 intent on taking over Central City. Barry and Wells come up with a plan to stop Zoom once and for all but it’s extremely dangerous. Unsure if he should take the risk, Barry reaches out to both fathers for advice. Henry is adamantly opposed to Barry risking his life again but Joe thinks he can handle it which puts the two men at odds with each other. Meanwhile, Cisco is shocked when he vibes the Earth-2 villain Rupture, who happens to be his brother Dante’s doppelganger. Rupture came to this Earth seeking justice for Reverb’s death. Iris decides she’s finally ready to open up to Barry about her feelings for him.
Director: Armen V. Kevorkian
Writer: Lauren Certo
7.4/105 votes#11 - Family Reunion: Episode 4
Season 1 Episode 4 - Aired 9/15/2015
Vixen pushes her abilities to the limit to escape The Flash and Arrow.
Director: James Tucker
Writer: Lauren Certo
7.3/1021 votes#12 - News Flash
Season 5 Episode 4 - Aired 10/30/2018
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 issues a challenge to help boost his confidence.
Director: Brent Crowell
Writer: Lauren Certo
7.3/1021 votes#13 - The Trial of The Flash
Season 4 Episode 10 - Aired 1/16/2018
As Barry’s trial for the murder of Clifford DeVoe begins, Iris and Joe must decide how far they are willing to go to keep Barry out of prison.
Director: Phil Chipera
Writer: Lauren Certo
7.2/106 votes#14 - Family Reunion: Episode 2
Season 1 Episode 2 - Aired 9/1/2015
Vixen hones her skills and learns about her past.
Director: James Tucker
Writer: Lauren Certo
7.2/105 votes#15 - Family Reunion: Episode 3
Season 1 Episode 3 - Aired 9/8/2015
Vixen gets an unexpected house call from a couple of heroes.
Director: James Tucker
Writer: Lauren Certo
7.2/1023 votes#16 - Cause and Effect
Season 3 Episode 21 - Aired 5/9/2017
Barry takes drastic measures to stop Savitar. Meanwhile, H.R. continues to push Tracy Brand to design the trap for Savitar and Killer Frost returns with an interesting proposal.
Director: David McWhirter
Writer: Lauren Certo
7.2/1020 votes#17 - Null and Annoyed
Season 4 Episode 17 - Aired 4/10/2018
Barry and Ralph take different approaches to finding the remaining bus metas before DeVoe gets to them. However, Ralph's cavalier attitude frustrates Barry and the two clash over what it means to be a hero. Meanwhile, Breacher returns to ask Cisco for a favor.
Director: Kevin Smith
Writer: Lauren Certo
7.0/103 votes#18 - Trial by Fire: Episode 6
Season 2 Episode 6 - Aired 11/18/2016
Vixen accepts her destiny as she draws on all of the spirits of the animals to destroy the source of Eshu's power.
Director: Curt Geda
Writer: Lauren Certo
6.9/108 votes#19 - There Will Be Blood
Season 6 Episode 4 - Aired 10/29/2019
Barry's efforts to prepare Cisco for Crisis are derailed when Cisco schemes to save Barry's life instead. Meanwhile, Ramsey Rosso uses his deadly new abilities to save his own life, while sacrificing his humanity in the process.
Director: Marcus Stokes
Writer: Lauren Certo
6.8/1036 votes#20 - Trajectory
Season 2 Episode 16 - Aired 3/22/2016
Having arrived in town intent on creating maximum chaos, Trajectory's antics are misinterpreted as having been perpetrated by the Flash himself. Barry thus must quickly uncover the mystery of who is the girl under the mask — as well as what is driving her mad desire for speed and destruction.
Director: Glen Winter
Writer: Lauren Certo
6.8/1015 votes#21 - King Shark vs. Gorilla Grodd
Season 5 Episode 15 - Aired 3/5/2019
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.
Director: Stefan Pleszczynski
Writer: Lauren Certo
6.7/1019 votes#22 - Harry and the Harrisons
Season 4 Episode 21 - Aired 5/8/2018
With DeVoe's Enlightenment device nearly complete, in order to disable it The Flash and his team must put their faith in an unlikely ally – Amunet Black. Meanwhile, Harry hits an all-time low when the "Council of Wells" kicks him out but then Cisco introduces him to the "Council of Harrisons."
Director: Kevin Mock
Writer: Lauren Certo
6.7/107 votes#23 - A Girl Named Sue
Season 6 Episode 12 - Aired 2/18/2020
After months of searching for Sue Dearbon, Ralph gets a lead on her whereabouts and finally comes face to face with his missing client. However, Sue refuses to return home to her family, and instead, takes Ralph on a daring adventure. Iris faces a new challenge while Barry considers a potentially dangerous request from a trusted source.
Director: Chris Peppe
Writer: Lauren Certo
6.6/105 votes#24 - Family Reunion: Episode 5
Season 1 Episode 5 - Aired 9/22/2015
Mari McCabe discovers her past.
Director: James Tucker
Writer: Lauren Certo
6.0/101 votes#25 - Episode 2
Season 1 Episode 2 - Aired 12/8/2017
Overgirl and Black Arrow get the upper hand in the battle for Earth-X.
Director: Ethan Spaulding
Writer: Lauren Certo
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Lauren Certo Ratings Summary
"What's Past Is Prologue" is the best rated episode written by Lauren Certo. It scored 8.5/10 based on 21 votes. It was directed by Tom Cavanagh. It aired on 12/4/2018 and is rated 0.2 points higher than their second-best episode, "Trial by Fire: Episode 5".