Ben reveals details of his past and why he chose to be a cop to Cooper. Meanwhile, Dewey's friendship with a burnt out actor causes a rift in his partnership with Chickie.

After a car accident involving alcohol, Detective Salinger has his gun stolen by gang members in South Central. Sammy and Nate assist in the search for the weapon without calling it in, only to discover the gang in question is equipped with enough assault weapons, bullet-proof vests and military tactics to become a powerful urban street army. Elsewhere, still preoccupied with her personal life, Lydia is caught off guard when a man surprises her outside her home.