Supergirl and team must stop Nyxly from vanquishing a familiar face from Supergirl’s past – Mr. Mxyzptlk. Mxy returns and explains Nyxly’s dark history to the super team in the best way he knows how – in song form. Meanwhile, Lena visits her mother’s birthplace in Ireland, eager to dig into her past but is shocked by the small town’s icy reception towards her.
Season Number: 6
Episode Number: 11
Episode Title: Mxy in the Middle
Air Date: Sep 14, 2021