Castor pursues the clones in order to obtain original tissue samples; Helena is examined by a new villain.
Cast:
Tatiana Maslany
Dylan Bruce
Jordan Gavaris
Kevin Hanchard
Evelyne Brochu
Ari Millen
Kristian Bruun
Maria Doyle Kennedy
Michiel Huisman
Tom McCamus
Josh Vokey
Zoé De Grand Maison
Kyra Harper
Natalie Krill
Amanda Brugel