S1·E12 You Can't Go Home Again

Dog and Beth enjoy reminiscing about their early days bounty hunting in Denver. They return to the house where Dog raised Leland (built by Dog's grandfather), which moves Dog to tears. As they walk through the abandoned and rundown house, Dog is touched by the sublime and tearfully recalls the words his father said to him just before he died. - Summary from A&E's ""Dog"" website