The Season 13 premiere of Blue Bloods reveals a new side to Jamie Reagan that surprises his sister Erin. In the episode titled "Keeping the Faith," Jamie expresses frustration at the revolving door of criminals and questions the point of making arrests. This is something Erin usually expects from their brother Danny. Although Erin understands Jamie's perspective, she finds herself on the opposite side from him when it comes to releasing dangerous individuals. The premiere also includes a dangerous case involving domestic violence and presents Erin with a surprising offer regarding her run for District Attorney.