The Best Episodes Written By J. david Shanks

When Anton, an old colleague, learns Gray is working with the Tongais, he forces Gray to choose: his family or Horse. Rose and Makayla work together to survive. Horse searches for a traitor.

While Fish pursues an elusive lead, KJ struggles to have a painful conversation with the Butlers. Pete and DiAngelo butt heads.

After Saperstein's death, Harlee realizes there are no lines Wozniak won't cross and decides to help Stahl's investigation. The crew retaliates against a pair of abusive cops after they harass Harlee's daughter Cristina and her boyfriend. Wozniak makes Loman feel like a part of the unit.

Harlee struggles with becoming an FBI informant while Wozniak suspects every member of his crew. Paranoid that Wozniak's search will lead to her, Harlee suggests polygraphng the entire crew, a plan that backfires. An appeals case sends Wozniak to watch tapes from his first encounter with Harlee, revealing a dark secret from their past. Meanwhile, Espada helps Tess deal with her husband's infidelity.

Brandon gets a new opportunity. Kevin and Maisha form an unlikely friendship. Emmett takes on more responsibility at work. Cruz deals with blowback from Ronnie’s confession. Ronnie receives some shocking news. Toussaint gets a lead on her case.

Detective Cruz is left to make a difficult choice. Brandon gets some insight into Douda's past. Jerrika drops a bomb about her career. Emmett tries to figure out who Keisha is dating. Ronnie opens up to Jada, who helps him heal old wounds.

Brandon and Emmett hatch a plan. Emmett starts his new job. Ronnie deals with the consequences of his actions. Kevin gets into hot water with his mom. Detectives Toussaint and Cruz make an exciting discovery.