Things get personal for Danny when Luis Delgado, the drug cartel hitman responsible for torching his house, resurfaces. Also, an attack on an officer in the line of duty directly impacts a member of Frank's team; Eddie reluctantly introduces Jamie to her mother, Lena; and Erin deals with the consequences of her new role as boss.

When a video surfaces of cops being harassed by a group of people at a housing complex, Frank orders a raid to round up anyone with an outstanding warrant, against Garrett's advice. Also, Danny is approached by a woman he put in jail who asks for his help keeping her brother out of trouble, and Nicky's new boyfriend has ulterior motives.