The CW’s DC TV universe ‘Hero’s v Aliens‘ four night crossover event kicks off tonight with the ‘Supergirl‘! In tonight’s episode titled, ‘Medusa‘. We get to see Barry Allen and Cisco pay a visit to National City to help her with the impending alien problem. Check out the latest details below and then tune into the CW tonight at 7pm Central for ‘Supergirl‘! Join in the conversation AFTER THE JUMP!
“Eliza (guest star Helen Slater) comes to town to celebrate Thanksgiving with her daughters. Alex (Chyler Leigh) decides it’s time to come out to her mother; Kara (Melisa Benoist) is shocked when Eliza suggests Mon-El (Chris Wood) has feelings for her, and Winn (Jeremy Jordan) and James (Mehcad Brooks) consider telling Kara the truth about the Guardian. Meanwhile, CADMUS unleashes a virus that instantly kills any alien in the vicinity so Kara enlists an unexpected ally – Lena Luthor (Katie McGrath). The epic superhero crossover kicks off tonight when Barry Allen (guest star Grant Gustin) and Cisco Ramon (guest star Carlos Valdes) seek Kara’s help with an alien invasion on their Earth.”