Supergirl | Episode 34 - 'Mr. & Mrs. Mxyzptlk'

Steve and Derek try to dissect whether or not the original plot of 'Superman III' had Supergirl and Mxyzptlk in it - but even if it doesn't, the duo talk his appearance in the latest episode of 'Supergirl,' rooting for him over Mon-El and Winn and Alex's relationships.