By Monday in the States, Americans probably won’t want to look at another turkey ever again after the long Thanksgiving weekend, but more Thanksgiving is exactly what they’re going to get in Supergirl’s “Medusa”, the first episode of the massive four-show Arrowverse “Invasion” crossover. When Kara, James, Winn, Mon-El, Eliza and Alex settle down for the big feast some interdimensional radio static from the Flash and Vibe gatecrashes the party.
The official synopsis reveals: “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.”