Sarah joins forces with an unlikely and untrustworthy ally, following a trail of clues that she hopes will lead her to the origins of the clone experiment. Cosima and Delphine make a discovery that could prove to be the key to treating her illness. Alison finds herself in unsavory company at rehab.
Genres: Drama , Sci-Fi & Fantasy
Keywords: clone , eugenics , experiment , genetic-enhancement , identity-swap , sibling-relationship , tv-shows-online