Erin is rattled when an unknown assailant breaks into her apartment and also attacks her co-worker. Meanwhile, Jamie and Eddie discover a pipe bomb in an elderly woman's apartment, and Frank looks into a charity that is soliciting money for the NYPD.

Frank goes toe to toe with an investigative journalist who refuses to give up her source, despite the source admitting to committing murder. Also, Danny is paired with a troubled teenager as part of an NYPD program aimed at influencing youth to make better decisions.