The Fosters actress replaces the original young Girl of Steel Malina Weissman, who now currently stars on Netflix’s A Series of Unfortunate Events, for a flashback-heavy episode that will reveal much more about the Danvers sisters.
The sixth episode of the season, titled “Midvale,” finds Kara (Melissa Benoist) and Alex (Chyler Leigh) taking a road trip to their childhood home, where they relive a murder mystery from high school that shaped their relationship as we know it.