Watch preview clips below for tonight's episode of Supergirl, "We Can Be Heroes."
Supergirl airs Mondays at 8pm ET starring Melissa Benoist.
Episode synopsis:
After Livewire (guest star Brit Morgan) seemingly breaks out of prison, Supergirl (Melissa Benoist) is intent on recapturing her. After training Mon-El (Chris Wood), 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 (Mehcad Brooks) decides to come clean with Kara and M’Gann (guest star Sharon Leal), has a psychic attack and collapses into a coma.