Midvale


 * For the city this episode is based around, see Midvale (location).

"Midvale" is the sixth episode of the third season of Supergirl and the forty-eighth episode overall.

Synopsis
Kara and Alex head home to Midvale for a little R&R. While there, Kara recalls a painful memory of a childhood friend’s death and how that traumatic experience brought the Danvers sisters closer together.

Trivia

 * As of this episode, Kara is the only character to appear in every episode as this is the first episode in which Winn does not appear.
 * This episode features the smallest main cast of any episode of the series at three.
 * Eliza is seen reading the "Nine Lives and Counting" by Cat Grant while waiting for the girls to come to breakfast.
 * This episode references the character of Chloe Sullivan and her "wall of weird", these are references to the TV series Smallville. Erica Durance previously played Lois Lane in the fourth season until the series' conclusion in Season 10.
 * Midvale High School is in reality Vancouver Technical Secondary School. Between 2001 and 2005 (and once in 2010), this school was used as Smallville High School on Smallville.
 * The flashbacks in this episode takes place after Manhunter's flashbacks as J'onn has already taken the form of Hank Henshaw and has access to D.E.O resources.
 * While in Alura's form, J'onn uses the pseudonym Noel Neill. The name reference the actress who played Lois Lane in the 1948 Superman film and Atom Man vs. Superman in addition to the Adventures of Superman TV series that aired from 1952–58. Neill also made appearances in the TV show Superboy, and two live-action Superman films including the 1978 film and Superman Returns. The latter previously featured Brandon Routh in the title role. Incidently in season 4 of Smallville when Durance was playing Lois Lane the kidnappers to get her out the country had her fake passport read Margot Neill. A reference to Noel Neill and Margot Kidder who both played the charecter.
 * There is a continuity error in this episode. Young Kara asserts that she is "literally bulletproof", while in the pilot episode, adult Kara is unsure if this is the case however it could been due to Kara's lack of confidence since she remained dormant with her powers until she became Supergirl.
 * Young Kara notes that Kryptonian children are doing Calculus work by the age of 4.
 * The flashback notes it was 10 years prior to the episode. However, young Kara was age 15 at the time, and adult Kara was age 25 in the Pilot. This should note the flashback was 12 years ago.