Colleen and Pruitt are forced to reopen the infamous local cold case of Robin Wade and Billy Shipper, after learning that Riley and Eunice's confessions shed new light on the case. The detectives must tread lightly in order to keep their actions under wraps, discovering that the cousins know details of the murder that were not made public. Colleen worries about news getting out that they have re-opened the case, which has personal stakes for Leland, and must work quickly to verify the new leads.