Clarke has been ill for the past week and Lexa, worried out of her mind, takes Clarke to Arkadia to Abby who tells them the shocking diagnose.

After a late night visit to LCorp Kara-as Supergirl- ends up spending the night with Lena. Lena finds out that Supergirl has a habit of talking in her sleep. The morning after leads to Lena revealing that she's always known that Kara is Supergirl