13 best Supergirl episodes ranked from worst to best

1. Supergirl Season 4, Episode 16: The House of L

The House of L saw Supergirl face off against a doppelgänger, who went by the name Red Daughter. Supergirl is known for action, and this one did not fall short. We’re talking punches, heat vision, and a clash of superpowers that had emotional stakes. Credit goes to Director Lexi Alexander who choreographs each moment, heightening the intensity to perfection.

The battles were sick, but what made this episode stand out was the way it weaved in the twisted plans of the evil, yet captivating, Lex Luthor. Jon Cryer’s portrayal of this nefarious mastermind is a tour de force, leaving viewers in awe of his manipulative genius. His diabolical schemes and unexpected alliances keep us guessing and cheering for Supergirl even more fiercely.

The surprises kept coming in this episode. From shocking reveals to unexpected twists, in a story was fun and chaotic. And it’s not just Supergirl who steals the spotlight. Chyler Leigh as Alex Danvers and Jeremy Jordan as Winn Schott, deliver performances that are nothing short of amazing.

The House of L is an episode that deserves its place as the greatest episode in Supergirl history.