"Y: Marshals expands the Yellowstone universe with a gritty neo-Western procedural set in modern-day Montana. Following the explosive conclusion of Yellowstone, Kayce Dutton (Luke Grimes) leaves ranch life behind to join an elite unit of U.S. Marshals. Combining his skills as a cowboy and former Navy SEAL, Kayce becomes part of a specialized team tasked with bringing "range justice" to a region plagued by escalating violence, organized crime, and deep-rooted corruption.