Supergirl - Season 4, Episode 15 - Rotten Tomatoes

O Brother, Where Art Thou?



Critic Consensus: No consensus yet.

Episode Info

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.


Melissa Benoist
as Kara Danvers/Supergirl
Mehcad Brooks
as James Olsen
Chyler Leigh
as Alex Danvers
Jeremy Jordan
as Winslow "Winn" Schott
David Harewood
as Hank Henshaw/J'onn J'onzz
Chris Wood
as Mon-El
Floriana Lima
as Maggie Sawyer
Katie McGrath
as Lena Luthor
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O Brother, Where Art Thou? Videos

O Brother, Where Art Thou? Photos

Critic reviews for O Brother, Where Art Thou?

I will not lie to you my friends... I gasped. I never in a million years suspected her.

March 19, 2019 | Full Review…

[Jon] Cryer's Lex in conjunction with McGrath's Lena provide the backbone for a very solid episode of Supergirl.

March 18, 2019 | Full Review…

I don't remember the last time I enjoyed a Supergirl episode this much. At least not this season.

March 18, 2019 | Full Review…

It's been a tough week for our friends in National City, but it made for a great episode of television, and I hope it will help Supergirl power through for the rest of the season.

March 18, 2019 | Full Review…

'O Brother, Where Art Thou' was a success on all fronts, introducing Lex Luthor in a way that remained relevant to the show while using the urgency of the current events to move the story forward in a major way.

March 18, 2019 | Full Review…

It's perfection, and the only thing that made it better was the trailer for next week.

March 18, 2019 | Full Review…

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