<p>Officer John Cooper returns to duty after recovering from back surgery and meets his new partner, Officer Jessica Tang, a tough and disciplined cop with her own set of baggage from working the streets. Lydia, whose new partner is Ruben Robinson, can&#39;t seem to escape helping a former CI who won&#39;t stay in safety. Ben, Sammy and Dewey chase an armed man into an elementary school, ...</p>美国剧《南城警事 第四季》剧情介绍由剧集天堂在线收集提供。