Truth, Justice and The American Way

S1 E14: Supergirl does battle with the deadly Master Jailer (guest star JEFF BRANSON), who is hunting and executing escaped Fort Rozz prisoners. Also, Cat hires a second assistant, Siobhan Smythe (recurring guest star ITALIA RICCI), who immediately tries to one-up Kara. Meanwhile, James and Kara disagree over the DEO's methods.