When a researcher who specializes in Native American antiquities is killed at the museum where she works, the FBI is called in because the museum is on federal land.

An official truce is announced but complications quickly arise, threatening the lives of humans as well as Bloods.

Luther’s testimony rattles a few cages. Desmond and Amélie investigate an unsettling noise. Danika and Michael hit the town.

Luther connects with a Washington insider who has a plan to keep society from collapsing. Ava sets out to get proof of the DNS internment camps.

Suddenly on his own, Desmond calls on his mother for help. Danika urges Michael to think bigger. Mila tries using her strength for good.

Desmond’s health worsens, forcing Luther down a dangerous path. Later, Luther receives a surprising offer and Michael lays down the law.

Luther pleads with the DNS to bring in Michael alive, but other pursuers have less peaceful intentions. Meanwhile, Danika’s urges grow stronger.

The government struggles to contain and understand the outbreak. Kaylee interviews Luther’s ex-wife while Danika pays her sister a visit.

Sully lies to everyone about what he is doing, but the truth comes out. Cloud Dancing flees to the Tongue River Valley. Sgt McKay (David Beecroft)sees Sully at the scene….

Cloud Dancing is badly beaten by soldiers for returning late to the reservation. Michaela treats him. When Sully learns of the attack, he is outraged. Tired of being treated cruelly,…

When Phoebe feels the pain of an injured American-Indian ghost she sees in a deserted town, Prue travels back in time to the mid-1800s to save the man, and Phoebe,…

Madison faces a horrifying revelation.

Strand’s motives are made clear when Nick discovers a new threat descending on the dam.

Alicia encounters a potential ally; Ofelia fights for survival; Nick uses his skill set for profit.

With the Ranchers trapped and without hope, Alicia is thrust into a position of leadership where she’s forced to make life-changing decisions.

Following the rekindling of an old friendship, a mission is launched to replenish the Ranch’s water supply by seeking the help of another community.

With the Ranch dangerously low on resources, Madison and Walker leave in search of a solution. Nick and Alicia struggle to keep the peace.

In the aftermath of the Clark family’s actions, new leadership assumes control of the Ranch. Daniel assists Lola in the distribution of water.

Madison must negotiate the terms of an agreement in the midst of ranch-wide turmoil. Nick and Alicia challenge their mother’s motives.

A new arrival sows a divide within the ranch. Meanwhile, Alicia forms a new relationship in the hopes of maintaining peace.

A new threat reveals itself to Madison and Troy as they search for answers. Alicia must reconcile with her past decisions.

Hays recalls his early romance with Amelia, as well as cracks in their relationship that surfaced after they married and had children. Ten years after the Purcell crimes, new evidence…

Hays looks back at the aftermath of the 1980 Purcell case in West Finger, Arkansas, including possible evidence left behind at the Devil’s Den. As attention focuses on two conspicuous…

The disappearance of a young Arkansas boy and his sister in 1980 triggers vivid memories and enduring questions for retired detective Wayne Hays, who worked the case 35 years before…