Walter (John Noble) attempts to use the Transilience-Thought Unifier to relocate the fragmented plan to defeat the Observers within his brain, but fails to do anything productive.
Etta (Georgina Haig) captures a passing human Loyalist guard, Gael Manfretti (Eric Lange), before they are detected, and offers to interrogate him in the back office to get intel on the science building.
Olivia discovers and condemns this, and while Etta takes a break, is able to convince Manfretti, who believes that he will not survive, to cooperate after agreeing to tell his son his fate.
Manfretti explains about the access codes to the science building that requires an optical scan, but Etta's torture has caused him to age so much that his presence would arouse suspicion.
Walter is able to transfer Manfretti's iris patterns to old pig eyes, and Peter (Joshua Jackson) and Etta, disguised as human Loyalists, infiltrate the building.
Meanwhile, Olivia talks to Manfretti and learns that Loyalists like himself believe that their world would be better if they simply gave in to the Observers, himself having volunteered to protect his family.
As Walter and Astrid (Jasika Nicole) start to free the camera with the laser, Etta prepares to transport Manfretti to her resistance group, assuring Olivia that the guard was lying to get her sympathy.