As the Barn mourns the loss of Lem, Vic's bloodlust for the killer puts him on a collision course with Kavanaugh. Shane's increasingly unstable and erratic behavior concerns Vic and Ronnie. Claudette gets distressing news about the Barn's future before she's even settled into her new job as Captain. Dutch and Billings discover the gruesome San Marcos mass murder, while Julien and Tina's relationship deteriorates.