Jamie and his new intel team officer infiltrate a high-tech car smuggling ring. Also, Frank faces off against the city's transit chief over a new mayoral solo police patrol program that is causing officer injuries on the job; Eddie asks Danny to help her bust a cop impersonator; and Erin hires an image consultant to help with her D.A. campaign.

Danny reunites with Mickey Patrick, his childhood friend and a former criminal, who comes to him for help finding his missing fiancée. Also, Anthony surprises Erin with one last stakeout before her run for district attorney; Jamie helps a former officer caught committing a crime with the purpose of helping others; and Frank comes face to face with a woman who confesses to killing her husband.