Is "Supergirl's" Master Jailer a Kryptonian Vigilante?

In the first of a pair of new clips from tonight's "Supergirl" episode, "Truth, Justice and the American Way," the Master Jailer takes down Agent Danvers' DEO squad, and abducts the alien escapee they were attempting to recapture and return to Fort Rozz.

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In the second clip, moments before his execution, the shape-shifting criminal references the lack of a death penalty on Krypton and claims to know the Master Jailer's true identity.

Supergirl does battle with the deadly Master Jailer (Jeff Branson), who is hunting and executing escaped Fort Rozz prisoners. Also, Cat hires a second assistant, Siobhan Smythe (Italia Ricci), who immediately tries to one-up Kara, and Kara and James disagree over the DEO's methods.

"Supergirl" airs Mondays at 8 p.m. on CBS.

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