A ruthless divorce attorney is murdered. Meanwhile Callie's son, Jeff claims to have seen a man standing at his window, but Callie believes he's imagining it. Believing Jeff is telling the truth he has the boy look at mugshots on the computer, through which Jeff finds out the truth about his fathers criminal past and confronts his mom.

Longworth and Carlos investigate a murder involving high-end horse breeding. Callie, who was once an aspiring jockey, helps them with the ins and outs of this competitive, cut-throat world. Jim sees another side of Callie which leads them to grow closer.

The daughter of a notorious Cuban mobster turns up dead in a Little Havana alley, and Longworth and the rest of the Florida Department of Law Enforcement must solve her murder to prevent an all-out war between two rival mob families. Meanwhile, Callie prepares for her husband’s release from prison.

The murder of a Haitian doctor leads Longworth and the FDLE to a pill mill and a corrupt doctor's office. Addicts have been paying big money for pain medication all of which leads to a long list of suspects.

When body parts of a Coast Guard Reservist are found in the belly of a poached wild boar, Longworth hunts the killer into the depths of the Glades. Meanwhile, Callie and Longworth decide to push the restart button on their romantic relationship.

When Jim and Carlos investigate the death of a millionaire who bequeathed all his wealth to an organization of UFO enthusiasts, the organization's leader accuses the FDLE of covering up the true cause of death: an alien abduction. Meanwhile, Jim and Callie's relationship heats up, but Callie's job search to keep her in Palm Glade falters.

When the co-owner of a luxury medical spa turns up dead, Jim and Jennifer investigate the spa's members and discover the high costs the wealthy pay in order to stay looking young and beautiful. Callie gets anxious while both studying for her boards and preparing for her testimony against Elkins. Her house in Palm Glades is falling apart, but her life in Atlanta is picking up.

While Jim searches for the killer who smoked the owner of a vast BBQ empire, Daniel enters a BBQ competition with his biggest rival: his brother Drew.

What appears to be a ritualistic murder leads Jim to investigate the secret world of Florida's gypsies just as he gets an unexpected visitor at home: his father, Michael.

Jim gets called back to the golf course to catch the murderer of a golf hustler, but he's handicapped by a mad scramble to tie up loose ends for Callie and his future.