Supergirl Episode 3 Sneak Preview: Fight or Flight

CBS has released a sneak preview of next Monday's episode of Supergirl: "Fight or Flight." Twilight saga star Peter Facinelli guest stars as tech entrepreneur Maxwell Lord.

Supergirl's powers are tested when Reactron (played by Chris Browning), one of Superman's formidable enemies, arrives in National City and targets the young hero. Also, Cat plans to run an exposé on Supergirl.

Check out the trailer in the video below.

Dermott Downs directed the episode which was written by Michael Grassi and Rachel Shukert.

You can also see preview images in the gallery at the bottom of the page.

"Fight or Flight" episode of Supergirl will air Monday, Nov. 9 (8:00-9:00 PM, ET/PT) on CBS.