Miguel Robo Sanchez

In the fifth season premiere, Officer Cooper clashes with his new "boot" – Gary Steele (DEREK RAY), while Lydia Adams tries to balance detective work with motherhood.

After Dave Mendoza is injured in a drive-by, Ben takes it upon himself to solve the case – much to Sammy's dismay. Lydia regains her footing as a detective while investigating the murder of a female boxer's husband. Tensions between Cooper and Steele finally come to a head during a traffic stop-gone-sideways.

In the season finale, John copes with the aftermath of his kidnapping, while Sammy closes in on the real robbers and the pressure builds on Ben. Meanwhile, Lydia continues to pursue John's kidnappers and becomes more intimate with Russell (special guest star TOM EVERETT SCOTT).