Plot summary
Sarah discovers that Brightborn owns GeneConnexion, the company that united Felix and Adele, so she sends their DNA to Scott to verify the familial match. Cosima goes undercover at Brightborn with Donnie, posing as a surrogate mother. Evie Cho is present, and the two fear that the high-level Neo would recognize a clone. At the same time, Krystal Goderitch continues investigating and poses as a prospective parent. Evie spots Krystal and informs Susan (who is visiting with Ira), but they mistake her for Sarah. While Cosima searches for Brightborn's lab, Donnie is shocked when he sees Krystal.
Elsewhere in the building, Susan meets Cosima who is unaware of Susan's identity, and discuss Brightborn's policies and techniques. Cosima steals her swipe card that gives access to secure areas. Later, Adele turns up to a family meal and after arguing with Felix, Sarah discovers that the two are indeed related and apologizes. Detective Duko warns Art to drop his interest in Beth. Alison confesses to Sarah that Helena took off. Donnie presents himself to Krystal as a Brightborn spa employee, and she shares her misguided suspicion that Dyad and Brightborn are putting stem cells in cosmetics.
Roxie locks Krystal in a room, thinking her to be Cosima. Susan directs Krystal's release because she is harmless, then Krystal spots Ira in the building and begins to scream. Cosima comes across a pregnancy where the baby is delivered with severe deformities. When Susan walks in, Cosima realizes who she is and the two dispute the moralities of experimenting on human lives. Susan offers Cosima the opportunity to collaborate with them and to create a cure using the original's genome. Kira tells Sarah that she feels each of the Leda sisters.
Credits
Adapted from Wikipedia contributors, List of Orphan Black episodes. HTML formatting and reference markers removed.