The CW has released a promo for the third episode of Supergirl season 4, entitled ‘Man of Steel’; watch it here:

XANDER BERKELEY GUEST STARS IN THE ORIGIN STORY OF AGENT LIBERTY – Ben Lockwood (Sam Witwer) didn’t always hate aliens. Through a series of incidents, and input from his anti-alien father (guest star Xander Berkeley), Ben slowly transforms from a mild-mannered professor into the villainous Agent Liberty of today.

Supergirl season 4 airs on Sundays on The CW.

via Flickering Myth