Behind the Scenes on “Supergirl” S02E09 “Supergirl Lives”

With the 9th episode of Season 2 of “Supergirl” airing tonight, Executive Producer Ali Adler takes us behind the scenes of the story, in which Supergirl looks into a spike of missing people.

Titled “Supergirl Lives”, this episode airs on The CW on Monday, January 23.