Lena & Kara Clash In New Supergirl 3×19 Sneak Peek “The Fanatical”

A sneak peek from the new episode of Supergirl has been released. This new episode is titled “The Fanatical” and it will air tonight, May 21.

In this new clip, Lena and Kara clash heads over a machine Lena created in order to control Kryptonians. Kara is hurt that Lena didn’t inform her about the machine, where has Lena doesn’t see it as a weapon and felt as though she didn’t need to tell Kara about it.