Mark is taken down in a Prolethean shoot-out and Sarah must step in to help. But as Sarah gathers intel that puts her on the trail of the original Castor DNA, a familiar foe is not far behind. While Helena continues to toil in a faraway military compound, it is ultimately Sarah’s fate that will hang in the balance as she tries to save her sister. Meanwhile, Gracie is cast out from the Prolethean fold, and Alison and Donnie come face-to-face with unhappy drug lord, Jason Kellerman.
Elenco: Tatiana Maslany , Dylan Bruce , Jordan Gavaris , Kristian Bruun , Kevin Hanchard , Maria Doyle Kennedy , Évelyne Brochu , Incorrect Aspect Ratio , Inga Cadranel , Kevin Hanchard , Kristian Bruun , Maria Doyle Kennedy , Matt Frewer , Michael Mando , Michiel Huisman , Millie Davis , Natalie Lisinska , Peter Outerbridge , Ron Lea , Skyler Wexler , زينة .