Longmire (2012)

S2E1 Unquiet Mind

During a chaotic prison transfer, Walt finds himself in a race against time to track down a serial killer and his accomplices who have taken hostages and fled up a mountain. With a storm rapidly approaching and scant supplies at his disposal, Walt's resilience is pushed to its limits. As he grapples with the harsh elements, he begins to experience hallucinations brought on by hypothermia, compelling him to confront the demons of his past.