Supergirl Theories and Conspiracies Season 2 Episode 13 Good Nerd Bad Nerd / February 22, 2017 Supergirl Theories and Conspiracies Season 2 Episode 13 This week on Supergirl, we have fun with Mr Mxyzptlk. Plus more evidence that show seems to be headed towards a major storyline from the comics, New Krypton! Share this:ShareClick to email a link to a friend (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading...