Blue Bloods › Season 4

S4 E1: Unwritten Rules

Name: Unwritten Rules
Released: 2013-09-27

When an armed robbery ends with the death of a police officer, Frank makes it a mission for the NYPD to bring the suspect to justice. However, tensions run high in the Reagan household when Erin drops the charges and releases the suspect due to lack of evidence.

Air date	Sep 27, 2013
Runtime	45 minutes
TMDB rating	★ 7.1/10