Bon jour Danny Sorenson. Diane returns to work. Sorenson catches his first case, a drive-by shooting, which then gets mixed in with the case Russell has caught, the shooting death of the drive-by shooters. Russell is annoyed when Sorenson takes over both cases. Sylvia stops by the squad to ask Andy's help in checking out whether a man, Suarez, who was put into prison may have really been innocent. So he tries to reach out to cop who made that arrest, but Dornan has a better memory of the way he's seen Sipowicz act in the past.