Sarah goes back to old habits to cope with her decisions and Cosima attempts a Hail Mary back at the lab.
Cosima admits doubt about finding a cure, which causes Sarah to make a drastic decision that exposes Kendall to people she has been trying to hide from. Elsewhere, Art and Felix try to protect Krystal Goderitch from herself.moreless
Sarah has a sleuthing mission to discredit Felix's new ties after she tries reconnecting with Kira. Also, Cosima teams up with Donnie to further investigate the Neolutionist fertility research center.
Sarah forms an alliance with a former enemy in hopes of getting to the head of Neolution. Elsewhere: Alison orders Felix and Donnie to invade a Neolution fertility clinic and Susan Duncan leaves Rachel to make a devastating decision.moreless
Sarah has a traumatic encounter as she investigates a shocking discovery of Neolution's biotech.
Sarah tracks down an elusive new ally and unearths the next aspect of the Neolution's agenda.
Castor and Topside force Sarah to make uncomfortable alliances. Donnie gives Helena an unexpected "gift" and the results of Alison’s candidacy finally come in. As team Leda takes a moment to breathe, change is in the works and a life hangs in the balance.moreless
Rachel agrees to decipher the secret code in Ethan's book but Sarah and the clone club will have to find a secret way out of Dyad for Rachel. Helena and Gracie work with Alison and Donnie at Bubbles. Donnie confronts Allison about Jason’s kiss and devises a plan to set Jason straight. Dr. Coady and Benchman scheme to track down the Castor Original. Rudy drops in on DYAD for a much needed asset. A new clone enters the picture.moreless
A family celebration of Alexander Reynolds' 60th birthday is dampened when he's found with an axe plunged into his chest. Murdoch is called in and soon discovers the victim was universally despised by his kin. Reynolds' family instantly falls under suspicion but the field of suspects narrows considerably when daughter Charlotte Reynolds appears in a blood soaked dress and confesses to killing her father.moreless
On the day of her sister's wedding, doubts are rising in Erica's mind if the couple is meant for each other, so Dr. Tom sends Erica back to find out and to fix her sister's relationship.moreless
Things are going great for Paige, but the trial for her rape case is fast approaching, and when she bumps into Dean, she wonders if she should go through with it. It is Craig's birthday, and he receives an extravagant gift, from an unlikely person.