Strange Visitor From Another Planet

"Strange Visitor From Another Planet" is the eleventh episode of the first season of Supergirl. It is set to air on January 25, 2016.

Synopsis
Kara must help Hank face his painful past when a White Martian, a member of the alien race that wiped out his people, kidnaps Senator Miranda Crane (Tawny Cypress), an anti-alien politician. Also, Cat’s estranged son, Adam (Blake Jenner), arrives in National City.