Watch the Promo for Supergirl “Crime and Punishment”

The promo for the next new episode of Supergirl has been released. The episode is called, “Crime and Punishment” and it will air on Sunday, April 21.

I really hate how we have to wait until April 21 for the episode. I really want to see what happens now with Kara and Supergirl being made public enemy one. Also, can we talk about how much I loved watching Lena and Alex working together last night!