We Can Be Heroes

"We Can Be Heroes" is the upcoming tenth episode of the second season of Supergirl, and the thirtieth episode overall.

Synopsis
After Livewire seemingly breaks out of prison, Supergirl is intent on recapturing her. After training Mon-El, Supergirl takes him with her when she sees Livewire attack the NCPD but things go awry when Mon-El puts Supergirl before the citizens of National City. Meanwhile, James decides to come clean with Kara and M’Gann, has a psychic attack and collapses into a coma.

Trivia

 * The episode's title is a reference to the David Bowie song Heroes.