Ethan learns more about Wayward Pines and its residents. Theresa sets her sights on investigating an unusual plot of land. Kate and Harold plan a covert operation.

David suspects a traitor inside the complex helping the insurgents, and orders Pam to question the technicians. Meanwhile, Ethan is determined to stop more terrorist attacks like the one that put Ben in the hospital.

Harold's failed attempt to break past the fence surrounding Wayward Pines leads to questions from Ethan about other insurgents who have gone off the grid. Amy's health takes a turn for the worse. Nurse Pam pushes Theresa to investigate Plot 33. Ben is encouraged by his teacher to speak publicly about current events.