"Supergirl's" first season continues tonight on CBS with the airing of "Strange Visitor From Another Planet." As revealed in last week's promo for the episode, the menace of the White Martians will play a role in the installment -- a role that's elaborated upon one of the three new sneak peeks for tonight's "Supergirl."

The episode will also see the introduction of Cat Grant's son Adam, played by Blake Jenner. Kara and Adam -- who's played by actress Melissa Benoist's real life husband -- get some face time together in another advance look at "Strange Visitor From Another Planet."

KARA MUST HELP HANK BATTLE A MEMBER OF THE ALIEN RACE THAT WIPED OUT HIS PEOPLE, ON "SUPERGIRL," MONDAY, JAN. 25

"Strange Visitor From Another Planet" -- 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, on SUPERGIRL, Monday, Jan. 25 (8:00-9:00 PM, ET/PT) on the CBS Television Network.

"Supergirl" airs on Mondays on CBS.