Mr. Mxyzptlk Tries to Help Supergirl in New Sneak Peek from Supergirl “Mr. & Mrs. Mxyzptlk”
A second sneak peek from the next new episode of Supergirl has been released. The episode is called, “Mr. & Mrs. Mxyzptlk” and in the sneak peek Mr. Mxyzptlk tries to help Supergir…
