Plot
In the swamps of the Louisiana bayou, two men are hunted and killed by four costumed, well-armed adversaries.
A retired US Secret Service agent, Captain Matt Hunter, has retired to his family's cattle ranch in Louisiana and Texas, with his sister Sarah and grandfather. They drive to New Orleans and meet Matt's old military comrade and local politician Larry Richards, who is now running for US Senate. At dinner, Larry hesitantly mentions threats made against his life during the election cycle, which he dismisses as harmless. Later that day, Larry, Matt and their families ride in Larry's float in the Mardi Gras parade. Disguised as revelers, assassins open fire on Larry's float, killing his eldest son. Matt and Larry take down the attackers, but Matt loses the last assassin in charge in the crowd.
Matt calls in a favor to his old boss, Admiral Brown, and learns the perpetrators are members of an organization known to US intelligence as the Pentangle. Taking the name of the five-pointed star, the Pentangle is a far-right group promoting extreme views on gun rights, immigration, and security whose leadership is suspected of operating a hunting club targeting people. The Secret Service suspects the cult to be composed of businessmen and authority figures with connections to Washington and to be run by five members, each represented by a point on the star, but it lacks further knowledge and asks Matt to infiltrate the organization to gain further intelligence. Matt declines because of his family, and but he sends his and Larry's family to hide out at his ranch.
Meanwhile, Matt and Larry intentionally foil a second trap set by the Pentangle, which eliminates several more assassins in a dockyard confrontation.
Professor Elliott Glastenbury is the head of Glastenbury Industries and the leader of the Pentangle. He takes personal interest in Matt after he reviews surveillance of the botched Richards hit, Pentangle's first failure. The members Wade Delaney, Jeb Wallace, and Charles Lavall considers asking Matt to join.
Learning that the families are hiding out at Matt's ranch, Glastenbury orders Delaney, Wallace, and Lavall to attack the ranch, kill the Secret Service agents and Matt's grandfather, and set the ranch ablaze. Matt, Sarah, and Larry's wife all escape, and Larry goes back to rescue his youngest son but is shot in the process. As Matt saves them both, Larry asks Matt to protect his son and dies. Meanwhile, Pentangle finds Sarah and Larry's wife hiding outside, takes Sarah hostage, and executes Larry's wife.
Matt attempts to escape via the roof with Larry's son but is shot in the leg while he falls to the ground. The Pentangle gives Matt two weeks to agree to be hunted, or it will kill Sarah. Before leaving, it executes Larry's youngest son in front of an injured Matt.
Two weeks later, Matt shows up to a Cajun bayou party at which the Pentangle members are guests. Matt finds Sarah about to be auctioned off by the brothel as a sex slave. He rescues her, which attracts the Pentangle's attention, but escapes into the swamps on foot. The Pentangle hunts him throughout the night, but one by one, Matt eliminates Lavall, Wallace, and Delaney until only Glastenbury remains. Ambushed by Glastenbury, Matt stabs him, which allows both men time to escape, with Matt taking Sarah to Brown for treatment and protection.
Matt then confronts Glastenbury at his mansion. Declining his offer to join the Pentangle, both duel with Glastenbury's collection of antique weaponry around them. Glastenbury appears to have the upper hand, but Matt impales him on one of his own statues and kills him. Matt goes to the hospital to see Sarah, where Brown congratulates him on a job well done. Matt confronts him that only the Secret Service knew that the families were hiding out on Matt's ranch and so someone in the Service is connected to the Pentangle, which strongly implying that Brown is the unnamed fifth member of the Pentangle's membership. Matt vows to continue fighting the Pentangle and leaves.
