Hightown, Everybody's Got A Cousin in Miami

Troubled Marine Fisheries agent Jackie Quinones finds a dead body on the beach - and is plunged into the centre of a complicated and dangerous opioid ring investigation.

After discovering a lead on Sherry's murder, Jackie becomes determined to solve the case. Meanwhile, Junior finds himself trapped in a position he can't stomach.

Jackie returns to rehab - but only to help further her investigation. Meanwhile, Ray starts closing in on Osito and Junior takes the first step to becoming a soldier.

Jackie finds out where Krista Collins is staying, but gets pulled back into her own life. Ray comes face-to-face with Osito, while Junior tries to reconcile with Donna's family.

Jackie goes on a bender, threatening everything she's got going for her, and ultimately puts Krista Collins in danger like never before. Ray and Renee go on a date.

Jackie and Junior struggle to cope in the wake of a traumatic event. Meanwhile, Ray's investigation picks up speed, and he is there for Renee when she really needs him.

When Jackie discovers Junior is involved with Sherry Hunter's murder, she enlists the entire CCINU to help find him. Renee questions her relationship with Ray.

Jackie and Ray try to return to business as usual after a depressing failure, only to learn the case might not actually be closed.