Viceroy Mercado (William Atherton) returns to Defiance to inform Niles (James Murray) about the coming Arkfall and that he wants him to go with a team, Nolan (Grant Bowler) included, to retrieve an energy source from the Ark.
Nolan and Niles get ready to go with the team when Tommy (Dewshane Williams) comes to join them with Berlin (Anna Hopkins).
Nolan and Niles get to the fallen Ark along with Churchill (Rob Archer) and an E-Rep soldiers unit.
They return to the Ark, where they are trapped inside the ship while Nolan tries to create a weapon that will kill the Gulanee and save their lives.
Since her attempt to convince the other women has failed, she realizes she cannot let them live to tell anyone what she is up to, so she poisons them and frames Favi Kurr for the crime.
At the end of the episode, Deirdre (Kristina Pesic) helps Christie (Nicole Muñoz) to get "into the skin" of the Castithans by putting makeup and a wig on her and dressing her like them.
[1] In its original American broadcast, "This Woman's Work" was watched by 1.61 million; slightly down by 0.03 from the previous episode.
Relationships shift, secrets are revealed, and new ones are glimpsed only by the viewers, giving us tantalizing morsels to keep us hungering for more.
The most shocking thing in this episode is the conversation where Irisa spilled to Tommy that she had no clue what was happening.
"[The end of the episode] is an odd direction to take the show, but anything unexpected is generally good, if it all makes sense.