As Kayce tries to embrace his new beginning, a Marshals op to stop a domestic terror attack lands him in a valley of buried Dutton family skeletons. While confronting his past, he must also learn to ingratiate himself with his new Marshals teammates.
With the Yellowstone Ranch behind him, Kayce Dutton joins an elite unit of U.S. Marshals, combining his skills as a cowboy and Navy SEAL to bring range justice to Montana, where he and his teammates must balance family, duty and the high psychological cost that comes with serving as the last line of defense in the region's war on violence.