After Ray burns nephew Ernie alive for confessing to the police about their recent arsons, Chief Boden, feeling guilty, attacks him. Boden gets suspended indefinitely. With Dawson by his side, Casey speaks to the parole board, on behalf of his mother, about forgiveness and second chances. She is granted parole on the condition that she moves in with her son. Renee introduces Severide to a doctor who could perform an experimental spinal procedure with a very short recovery time. The drawback: possible partial paralysis. He gets upset with her suggestion, but his father (Treat Williams) talks him into it and decides not to move with her to Spain. Clarice leaves her husband and plans to move in with Shay.