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.
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.
Guest Cast

Matt Baram
as MitchCast Appearances
Episode Discussion
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Trust me, it's likewise here, too!! God, I used to get on the edge of my seat back when it started...
The only reason I'm still watching is because it's the final season, but this season has been SOOOOO bad!
I'm so on the verge of unfollowing this TV series. I'm gradually losing interest in it...