Supergirl Season 6 Episode 6

Part two of the flashback episodes pick up where things left off – Young Kara experiences kryptonite for the first time, Nia and Brainy are trapped by invading aliens, and a young Cat Grant may be the reason Supergirl never gets out of the Phantom Zone.

Episode Title: Prom Again! (2)

Air Date: 2021-05-04