The only way forward is to go back. It's a new series with new characters, new clones and new secrets...and time to go back to the very beginning. The genesis of the Orphan Black universe holds the key to its future. In the profoundly surprising mystery that unfolds throughout Series 4, the stakes are raised, everything is up for grabs and the clones will learn no-one is to be trusted - friends become enemies and enemies hide behind many masks. Some threats have never been greater - The Neolutionists are now everywhere yet nowhere; And many questions may finally be answered - is Delphine really dead? Who is the unknown assailant that shot her? What is the horrifying twist that may fracture the 'sisterhood' forever?