The Harrelsons engage in a tense family reunion when Hondo’s older sister, Winnie, begrudgingly arrives in Los Angeles to see their sick father for the first time in decades. Also, the SWAT team searches for an abducted Middle Eastern human rights activist; Luca’s food truck business hits a snag; and Street worries that dating Captain Hick’s daughter, Molly, will negatively impact his career.

The SWAT team searches for an escaped convict who plans to kill Tan and every member of law enforcement who helped put him in prison years ago. Also, Chris comes face to face with internal corruption when she arrests a young man who is given a free pass due to his powerful father, and a surprise visit by Hondo’s sister, Winnie, puts pressure on his relationship with Nichelle.

A high-stakes domestic disturbance involving a father and his two young daughters leads the team to race against the clock to save a group of international activists.

After an armed robbery crew invades a downtown auction house, the case quickly turns personal for Hondo when his sister, Winnie (April Parker Jones), is taken as one of the hostages.