National Marine Fisheries Service agent Jackie Quiñones has a wrench thrown in her life when she uncovers a dead body on the beach, plunging her into an opioid ring investigation.

After discovering a lead on Sherry’s murder, Jackie becomes determined to solve the case. Junior finds himself trapped, and Ray is connecting with his CI in ways that are not professional.

Jackie returns to rehab, but only to help her investigation. Ray starts closing in on Osito at the same time he and Renee cross the line. 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. Junior tries to reconcile with Donna's family.

Jackie goes on a bender, threatening everything she has going for her, and putting Krista in danger like never before. Junior has to prove himself in a new way. Ray and Renee go on a date.

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