
With the Yellowstone Ranch behind him, Dutton joins an elite unit of U.S. Marshals, combining his skills as a cowboy and Navy SEAL to bring range justice to Montana. Kayce and his teammates -- Pete Calvin, Belle Skinner, Andrea Cruz, and Miles Kittle -- must balance the high psychological cost of serving as the last line of defense in the region's war on violence with their duty to their families.

When Kayce and Andrea's off-hours fugitive hunt unexpectedly reveals the whereabouts of a notorious bomber who previously slipped through Cal's fingers, the team is pulled into a dangerous pursuit that threatens to open old wounds.

As tensions rise between federal authorities and Broken Rock residents, the marshals are sent to investigate a military drone explosion.

When a former cop launches a killing spree against those he blames for sabotaging his career, the Marshals close in and one of their own finds themselves in the crosshairs of the vengeful killer; Rainwater faces mounting political pressure and backlash over his leadership on the reservation; Belle struggles to keep her family life stable.

When Kayce realizes Tate has been taken hostage, he goes rogue in a desperate race to save his son as the Marshals uncover a powerful criminal operation tied to the East Camp land grab.