Things Which Have Never Yet Been Done

The series focuses on a number of identical human clones, all of whom are played by Tatiana Maslany: Sarah Manning, Alison Hendrix, Cosima Niehaus, Rachel Duncan, and Helena.

At the Dyad Institute, Rachel appoints Delphine Cormier (Evelyne Brochu) the interim director of the cloning program following the death of Dr. Aldous Leekie.

Meanwhile, Cosima works with her lab assistant Scott (Josh Vokey) and Rachel's adoptive father Ethan (Andrew Gillies), a founder scientist of the cloning program, to find the genetic sequence that has caused her illness.

After confessing that he accidentally murdered Dr. Leekie, Donnie Hendrix and his wife Alison decide to dispose of the dead body under the cement of their garage floor.

They are interrupted by Vic (Michael Mando), whom Alison met in rehab and who is acting as an informant to Detective Angie DeAngelis (Inga Cadranel).

The Prolethean leader, Henrik Johanssen (Peter Outerbridge), impregnates his teenage daughter Gracie (Zoé de Grand'Maison) with his and Helena's embryos.

He praised the exploration of Rachel's character and especially Maslany's "nothing short of masterful" performance in the role, and described the satire of suburbia presented through Alison and Donnie as "impeccably wry".

[9] Paste critic Mark Rozeman gave the episode a rating of 8.4 out of 10, commending Bruun's performance as Donnie and the "wonderful bit of Coen Brothers-esque dark comedy" provided by Alison's subplot.

[11] Similarly, The New York Times's Adam W. Kepler opined that the episode displayed Orphan Black's "finest qualities (strong characterisation, dark satire and shocking moments) and its worst (odd pacing and ropey plotting)".

He enjoyed Alison and Donnie's comedic subplot and praised Maslany's performance as Rachel, but found the conclusion to Helena's storyline with the Proletheans "baffling" and "haphazard".