: After an armed robbery leads to the death of an off-duty police officer, the investigation tests the "unwritten rules" of police conduct and loyalty.
The episode's most enduring "feature" is the introduction of (played by Vanessa Ray ). Originally introduced as Jamie Reagan’s new partner at the 29th Precinct, her arrival fundamentally shifted the show's dynamic: Episode 1: Unwritten Rules
: This episode laid the groundwork for a multi-season romantic arc, moving from professional partners to life partners. : After an armed robbery leads to the
Beyond the character introductions, the episode focuses on the Reagan family navigating the blurred lines between duty and personal ethics: Episode 1: Unwritten Rules