After killing her mother, Rachel is able to abscond with the cure to lead the project. Elsewhere, Ferdinand has kidnapped Mrs. S and Kira, their whereabouts unknown. Sarah, who is still on the island, is injured, but is determined not to leave without Cosima. Sarah, while nursing her injury, has to evade the Neolutionists, who she knows are after her. She also discovers that there is someone, or something else out in the forest that may provide an added threat. Cosima learns from others around her where she is being held, it a camp called Revival where Charlotte is also being held. With Delphine also there providing clandestine support, Cosima may have other thoughts as to her situation than Sarah. Alison and Donnie, hiding in the woods with Helena, discover the situation from Felix, they only being told that they should lay low and stay out of sight. They feel somewhat like open targets as they know the Neolutionists are after them while they have no idea as to what is being done ... Written by Huggo

Dragged home from the Island by Neolution, Sarah refuses to follow Rachel's new regime. Sarah sets a plan in motion to get her and her daughter out of Neolution's reach for good.

Now that Sarah and Mrs. S have Kira back, they need to get her into a safe place. The activity around their house is remarkably quiet which Sarah believes is not a good sign. However, Mrs. S would like them now to focus on other things in their lives, namely Felix's first art exhibit in two years, he and Adele who have come back from their sleuthing in Switzerland. This exhibit is important for Felix as major art dealers and critics will be in attendance. All the sisters who are around - Sarah, Alison and Cosima - know the role they are to play in Felix's big day. However, Sarah can't help but believe that Mrs. S is up to something. Cosima can't ask Delphine, Mrs. S's recent partner in crime, in their new don't ask, don't tell relationship. If Sarah were to discover what Mrs. S and Delphine are up to, she may not agree with what they hope will be their final attempts to bring Neolution down for good. Meanwhile, Gracie is still at the convent with Helena, the latter unaware of ... Written by Huggo

Sarah, Felix and Kira mourning the death of S coincides with they and the other sisters learning from Sister Irina that Helena has been kidnapped. The sisters' first thought is that she has been taken to the island, but they figure that the one person who they now may seemingly be able to trust to some extent that would know for sure is Rachel. Rachel is only able to fill in some of the pieces. However, with news of Dyad's involvement in the genetics project hitting the media, Interpol has been called in to take over from the police the investigation of the deaths of some Dyad board members. While this may pose some problems for Art, he knows that Enger too is someone who probably knows Helena's whereabouts. The sisters also believe that Al-Khatib may be useful under the current circumstances, where he is trying to protect himself from what is going on with the Board. Meanwhile, Westmorland is becoming more desperate for a cure as he knows he is close to death without it, he ordering ... Written by Huggo

Now in labor, Helena is forced to hunker down in the basement of Old Dyad for the delivery. It's a cage match for survival as Sarah and Art struggle to protect her in a desperate last stand against Neolution.