When Rachel makes a promise to Sarah, it comes with a hefty price. Meanwhile, Helena and Gracie work with the Hendrixes, and Donnie takes Kellerman to task. Over at Castor, Coady and Benchman scheme to track down the Castor Original, and Rudy descends on DYAD for a much needed asset.
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 .