Supergirl Season 2 Episode 8 marked the beginning of an epic CW crossover.
It featured Barry Allen and Cisco Ramon from The Flash seeking Kara’s assistance with an alien invasion.
Meanwhile, at the same time, Eliza came to town to celebrate Thanksgiving with her children, which seemed like the ideal opportunity for Alex to come out to her mother.
Also this week, Winn and James considered telling Kara the truth about the Guardian; and Kara wanted to team up with Lena Luthor to combat a deadly virus unleashed by CADMUS.
How did it all go in the end? Click on the video featured here to watch Supergirl online.