6.9/109 votes#1 - 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: Nicki Holcomb
6.6/109 votes#2 - 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: Nicki Holcomb
6.0/108 votes#3 - Confidence Women
Season 5 Episode 6 - Aired 11/10/2019
While a new villain is under arrest at the DEO, Supergirl uses him to try and understand who is responsible for the recent attacks. Meanwhile, Andrea and Lena think back on their tumultuous past.
Director: Shannon Kohli
Writer: Nicki Holcomb
5.2/106 votes#4 - Lost Souls
Season 6 Episode 4 - Aired 4/20/2021
Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, Lena joins the Super Friends on a mission but finds she disagrees with their plan of action against the Phantoms and wonders if she is truly ready to be a part of the team.
Director: Alysse Leite-Rogers
Writer: Nicki Holcomb
5.2/106 votes#5 - I Believe in a Thing Called Love
Season 6 Episode 17 - Aired 10/26/2021
When Lex Luthor appears by Nyxly's side, Supergirl and team must deal with the emotional fallout of facing their two biggest foes at the same time. Alex makes plans for the perfect proposal to Kelly, but work keeps getting in the way.
Director: Jesse Warn
Writer: Nicki Holcomb
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Nicki Holcomb Ratings Summary
"O Brother, Where Art Thou?" is the best rated episode written by Nicki Holcomb. It scored 6.9/10 based on 9 votes. It was directed by Tawnia McKiernan. It aired on 3/17/2019 and is rated 0.3 points higher than their second-best episode, "Event Horizon".