The best episode written by Nicki Holcomb is "O Brother, Where Art Thou?", rated 6.9/10 from 9 user votes. It was "directed by Tawnia McKiernan". "O Brother, Where Art Thou?" aired on 3/17/2019 and is rated 0.3 point(s) higher than their second highest rated, "Event Horizon".
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
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
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
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
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