Perception: "Toxic" - Tuesday, July 16, at 10 p.m. (ET/PT)
Pierce accepts an invitation to work on a case from a renowned environmental activist concerning a chain of abnormal neurological reactions in a group of young girls. However, upon examining the girls, Pierce discovers that a dark secret is at the root of their ailments. Meanwhile, Moretti questions Pierce's motives in working on a case without her.
Directed by Jeff Woolnough
Written by Warren Hsu Leonard
Created by Ken Biller & Michael Sussman