8.0/102 votes#1 - Sense Memory
Season 3 Episode 3 - Aired 7/9/2015
While Mike's visions and addiction to pain medications start affecting his ability to function in the field, Briggs coaxes a former FBI agent out of retirement to help take down Ari.
Director: Duane Clark
Writer: Derek Simon
7.3/1018 votes#2 - Homecoming
Season 2 Episode 14 - Aired 2/27/2017
When Jeremiah Danvers is rescued from Cadmus, Alex and Kara are thrilled to have their father back. The Danvers arrange a family dinner to celebrate but things go awry when a suspicious Mon-El starts to question Jeremiah about his sudden return.
Director: Larry Teng
Writer: Derek Simon
7.2/1021 votes#3 - Welcome to Earth
Season 2 Episode 3 - Aired 10/24/2016
An attack is made on the President as hot-button, alien vs. human rights issues heat up in National City. Supergirl and the DEO are assigned to protect the President and bring in the responsible party. Alex teams up with Detective Maggie Sawyer to investigate the case while Kara searches for a recently escaped Mon-El, who she fears may be the alien behind the assault.
Director: Rachel Talalay
Writer: Derek Simon
7.2/1019 votes#4 - Resist
Season 2 Episode 21 - Aired 5/15/2017
Supergirl grapples with whether or not to obey the President's orders regarding Rhea's latest actions. Meanwhile, Cat Grant returns to National City.
Director: Millicent Shelton
Writer: Derek Simon
7.2/1017 votes#5 - Legion of Superheroes
Season 3 Episode 10 - Aired 1/15/2018
Struggling to heal from her injuries inflicted by Reign, Supergirl remains in a dreamlike state, unable to be reached. Mon-El recruits one of the Legion members, Brainiac-5, to try to bring her back. Meanwhile, Reign continues her rampage on the city so the DEO teams up with the Legion of Superheroes to try to stop her.
Director: Jesse Warn
Writer: Derek Simon
6.9/109 votes#6 - O Brother, Where Art Thou?
Season 4 Episode 15 - Aired 3/17/2019
Secretly furloughed from prison due to failing health, Lex Luthor visits his sister, Lena, to seek her help finding a cure. Savvy as ever, Lena is suspicious of Lex's motives but when she's faced with a life and death situation, she must decide how she truly feels about her brother. Meanwhile, Supergirl and J'onn face off against Manchester Black. James' sister Kelly comes to town.
Director: Tawnia McKiernan
Writer: Derek Simon
6.8/1018 votes#7 - Far From the Tree
Season 3 Episode 3 - Aired 10/23/2017
Eliza throws Alex and Maggie a wedding shower, which causes Maggie to reach out to her estranged father. Supergirl joins J’onn on a personal mission.
Director: Dermott Downs
Writer: Derek Simon
6.8/1030 votes#8 - Blood Bonds
Season 1 Episode 9 - Aired 1/4/2016
With Astra in captivity at the DEO, her husband, Non, captures Hank, leading to a tense standoff between the two sides. Also, Kara continues to refute Cat's allegations that she is Supergirl.
Director: Steve Shill
Writer: Derek Simon
6.8/1027 votes#9 - Medusa (I)
Season 2 Episode 8 - Aired 11/28/2016
Eliza comes to town to celebrate Thanksgiving with her daughters. Alex decides it’s time to come out to her mother; Kara is shocked when Eliza suggests Mon-El has feelings for her, and Winn and James consider telling Kara the truth about the Guardian. Meanwhile, Cadmus unleashes a virus that instantly kills any alien in the vicinity so Kara enlists an unexpected ally – Lena Luthor. The epic superhero crossover kicks off tonight when Barry Allen and Cisco Ramon seek Kara's help with an alien invasion on their Earth. The crossover continues on The Flash S03E08 Invasion! (II), Arrow S05E08 Invasion! (III) and DC's Legends of Tomorrow S02E07 Invasion! (IV).
Director: Stefan Pleszczynski
Writer: Derek Simon
6.7/1014 votes#10 - Man of Steel
Season 4 Episode 3 - Aired 10/28/2018
Ben Lockwood didn't always hate aliens. Through a series of incidents, and input from his anti-alien father, Ben slowly transforms from a mild-mannered professor into the villainous Agent Liberty of today.
Director: Jesse Warn
Writer: Derek Simon
6.7/1013 votes#11 - Dark Side of the Moon
Season 3 Episode 20 - Aired 5/28/2018
Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far she will go to keep Reign contained.
Director: Hanelle M. Culpepper
Writer: Derek Simon
6.7/1012 votes#12 - Schott Through the Heart
Season 3 Episode 14 - Aired 4/16/2018
When Winn’s father dies, his estranged mother, Mary, reappears trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of Myr'nn’s recent behavior.
Director: Glen Winter
Writer: Derek Simon
6.6/109 votes#13 - Event Horizon
Season 5 Episode 1 - Aired 10/6/2019
Kara is surprised to find that CatCo has a new owner who has brought in a star reporter. New couples emerge and explore their budding relationships while J’onn J’onzz receives an unexpected visitor.
Director: Jesse Warn
Writer: Derek Simon
5.2/106 votes#14 - Magical Thinking
Season 6 Episode 14 - Aired 10/5/2021
Lena is uncertain about using her magical abilities to help Supergirl retrieve the second totem from Nyxly. William struggles to write a story on the Super Friends that makes both the heroes and Andrea happy. Meanwhile, Kelly is thrilled Esme has found a new home, but things go awry and the little girl's future is put in danger.
Director: Simon Burnett
Writer: Derek Simon
4.8/106 votes#15 - A Few Good Women
Season 6 Episode 2 - Aired 4/6/2021
As the stakes with Lex are raised higher than ever before, Lena must decide how far she is willing to go to stop her brother. Meanwhile, Supergirl and the team are faced with a challenge unlike anything they've ever dealt with before and it brings Alex to her breaking point.
Director: Jesse Warn
Writer: Derek Simon
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The Best Episodes Written By Derek Simon
Every TV Episode Written by Derek Simon Ranked from Best to Worst by Thousands of Voters
Derek Simon Ratings Summary
"Sense Memory" is the best rated episode written by Derek Simon. It scored 8/10 based on 2 votes. It was directed by Duane Clark. It aired on 7/9/2015 and is rated 0.7 points higher than their second-best episode, "Homecoming".