Reed is suffering from a wrist injury which puts him on desk duty, while Malloy has to break in a new rookie partner. Reed's day is far from routine as he has to handle a bomb threat that results in the evacuation of the station, Officer Brinkman accidentally discharges his shotgun twice, a young man wants to report misconduct by a police officer, an elderly man brings a shotgun into the station to drop off, Malloy brings in a group of children abandoned by their mother, and Malloy and his partner pursue a car into the police parking lot, where the suspects are arrested.