Watch The Supergirl 6×17 Promo “I Believe in a Thing Called Love”

The promo for the new episode of Supergirl has been released. This new episode is titled, “I Believe in a Thing Called Love”, and it will air on October 26.

In this new episode, “When Lex Luthor (guest star Jon Cryer) appears by Nyxly’s (Peta Sergeant) side, Supergirl (Melissa Benoist) and team must deal with the emotional fallout of facing their two biggest foes at the same time. Alex (Chyler Leigh) makes plans for the perfect proposal to Kelly (Azie Tesfai), but work keeps getting in the way.”

Source: The CW