Supergirl
Season 2 Episode 8 - Medusa (I)
Eliza comes to town to celebrate Thanksgiving with her daughters. Alex decides it’s time to come out to her mother; Kara is shocked when Eliza suggests Mon-El has feelings for her, and Winn and James 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. The epic superhero crossover kicks off tonight when Barry Allen and Cisco Ramon seek Kara's help with an alien invasion on their Earth. The crossover continues on The Flash S03E08 Invasion! (II), Arrow S05E08 Invasion! (III) and DC's Legends of Tomorrow S02E07 Invasion! (IV).
Episodes in Season 2
The Adventures of Supergirl
42 min
The Last Children of Krypton
42 min
Welcome to Earth
42 min
Survivors
42 min
Crossfire
42 min
Changing
42 min
The Darkest Places
42 min
Medusa (I)
43 min
Supergirl Lives
42 min
We Can Be Heroes
42 min
The Martian Chronicles
42 min
Luthors
42 min
Mr. & Mrs. Mxyzptlk
42 min
Homecoming
42 min
Exodus
42 min
Star-Crossed (I)
42 min
Distant Sun
42 min
Ace Reporter
42 min
Alex
42 min
City of Lost Children
42 min
Resist
42 min
Nevertheless, She Persisted
42 min
