With the 13th episode of Season 2 of “Supergirl” airing tonight, Executive Producers Jessica Queller and Robert Rovner takes us behind the scenes of the story, in which Mr. Mxyzptlk shows up to declare his undying love for Kara.
Titled “Mr. & Mrs. Mxyzptlk”, this episode airs on The CW on Monday, February 20.