Jim investigates the death of a billionaire oil tycoon and art collector on the eve of Art Basel, Miami's international art show, while Callie's past may be putting her future at risk.

Jim is introduced to the intensely competitive world of Florida high school football as the small town of Pahokee prepares for the annual "Muck Bowl," an event that draws national attention because of the many NFL players who came from that area and who have played in that game. When the dead body of a businessman emerges from the muck in a sugar cane field days before the big game, Longworth must figure out who would want the man dead.

Longworth investigates a murder in Gibtown, a community populated with human sideshow descendants, and everyone is a suspect. Jim and Callie try to figure out the exact meaning of their relationship.

The FDLE enters the battle between good and evil when a Pentecostal preacher is found dead in a snake pit. Longworth's investigation into the House of God eventually leads him to the Big House and a fatal case of mistaken identity. Meanwhile, Sam's departure has Callie questioning her own relationship with Longworth.

The body of an $80-million Florida state lottery winner is found murdered on a remote island in Islandia, and Jim and Jennifer must unravel a personal vendetta spanning over a decade between the victim and the island's only resident. Miranda pulls Callie away from her studies to have some fun at a medical sales mixer, but Jim starts to find Callie harder and harder to reach in Atlanta.

When a male stripper (dressed like a police officer) is murdered by person or persons unknown, the department initially thinks a cop killer is on the loose.

While Jim unravels a three-way polyamorous relationship tied to a murder, his father Michael drops a piece of news that blindsides Jim.

In a lush, sun-drenched state preserve in Palm Glade, Florida, a young couple in a parked car wakes from a night of drunken carousing to find the body of a headless woman submerged in the area known as Fisheating Creek.

Jim Longworth takes Callie's son Jeff to a heavily-wooded area to collect bugs for a school science project. In the effort, they stumble upon an abandoned airplane with a dead body inside. The victim turns out to be a retired Special Ops guy who taught flight school lessons on the side to make extra money.

Longworth gets a nightmarish call from Daniel that Carlos has been found dead. Longworth is speechless and horrified at the site of his face-down dead body, but not as horrified as the real Carlos who is alive and p* off. Thanks to his daughter's internet shopping addiction, he was the victim of identity fraud by the murder victim. Longworth tracks the victim to the fake-Carlos' girlfriend who is a social anthropology doctoral student who has many research subjects who are emotionally attached to her. Longworth tracks down each of her subjects in his quest to find the real killer.

Longworth and Carlos are called to investigate the murder of a psychic advisor in the eerie town of Cassadaga, founded over 100 years ago by mediums and psychics; Callie's friend asks Longworth to be her date at a party for Callie's medical school.

A beautiful synchronized swimmer in an elaborate mermaid costume washes ashore dead, and the clues lead Jim to a bittersweet love triangle and a hip hop mogul trying to turn a mermaid show into multimillion-dollar phenomenon. On the home front, Callie hits a wall in her job search, and Jim realizes the best opportunity for her is the one in Atlanta she passed up to be with him.

When Jim finds the ex-Navy Seal owner of his favorite food truck dead in the truck's kitchen, he ends up embroiled in a heated political battle between the new wave of gourmet food trucks and the established boardwalk restaurants. Jennifer takes an active and prying interest in Jim's cases, while Callie's attempt to confront Miranda about her hostility backfires.

Longworth and Jennifer investigate a murder that puts them at odds with the Sovereign Citizens, a bizarre anti-government group that believes they are above the law. Manus and Carlos soon find themselves victims of the Sovereigns' paper terrorism attacks when they are suspended from duty. Callie desperately searches for her old cell phone where she recorded Elkins blackmailing her into sleeping with him for overlooking her tax issues.

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.

When the VP of a local bank is found dead in the vault, Jim discovers her tattoo and bruises reveal a double life as the star jammer of a rough and tumble roller derby squad.

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.

The murder of the first female professional Jai Alai player leads Jim to investigate the multi-million dollar gambling industry in Florida built around the 600-year old sport, and Jim's mother Joan arrives to join the dysfunctional reunion.

When a man is killed by a Civil War reenactor's sword, Jim must enter the fray to find which imaginary soldier committed a very real murder. Meanwhile Callie makes a tragic discovery at work, while Jim receives foreboding news for Callie and Jeff.

Longworth gets his first taste of a Florida hurricane, but instead of waiting out the storm, he gets swept up in a murder investigation that appears to be a spree killing and he must find the killer before there is another victim. Meanwhile, due to the storm, Callie and Carlos deal with a massive influx of patients at the hospital and a power outage leads Carlos and Daniel to take extreme measures in order to save lives.

A man suffering from head trauma claims to have witnessed a murder before being attacked and believes the murderer looks exactly like him.

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.

A stolen car and a body have Jim investigating some NASCAR drivers. After Ray is attacked, Callie must consider the option of witness protection.

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.

Jeff's mentor, the high school soccer coach, is found shot dead on campus.