In CBS’s Marshals, Kayce Dutton (Luke Grimes) moves from ranching and law enforcement in Montana to an elite role with the U.S. Marshals—where his work spans federal fugitives, judges, prisoners, witness protection, and seized assets.
Kayce Dutton didn’t grow up chasing a badge—he grew up around cattle. laws tied to ranching. and the kind of pressure that never really turns off. When viewers first met him on Yellowstone. Luke Grimes’ Kayce was working as a livestock agent and commissioner for the Montana Livestock Association. using that position to protect cattle and enforce ranching laws. He also brought something else to the table: a background as a former U.S. Navy SEAL.
Marshals, which premiered in March 2026, turns that past into a new mission. The CBS series follows Kayce as he leaves “ranching life behind to join an elite unit” of the U.S. Marshals. “combining his skills as a cowboy and Navy SEAL to bring range justice to Montana. ” where he and teammates have to “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.”.
So what does a U.S. Marshal actually do in Kayce’s world—and in real life?. The job duties laid out for the role are broad. and they land on the kind of work that doesn’t stop at a courtroom. The official website describes the job as involving “apprehending federal fugitives. protecting federal judges. transporting federal prisoners. operating the Witness Security Program and managing seized assets from criminal enterprises.”.
It’s a list that fits Kayce’s story transition: the ranching enforcement he previously handled through the Montana Livestock Association lines up with the show’s promise that he’s stepping into a wider. more dangerous kind of federal responsibility. And with Marshals airing on CBS Sundays at 8 p.m. ET. the character’s “range justice” pitch is quickly grounded in concrete assignments—fugitives to catch. judges to protect. prisoners to transport. witnesses to safeguard. and assets to handle.
Back when Grimes was talking about the spinoff idea ahead of Marshals’ premiere. he admitted he was skeptical about how it would land. even with a character as familiar as Kayce. In February 2026. he told Entertainment Weekly. “I’m my own worst critic. ” adding that he wasn’t sure Kayce would be the top pick if fans were asked who they wanted to see spun off.
He pushed for the project to earn itself. “So there was a fire under me. Like, it has to be good. If it’s not good, I’d rather not do it. We tried really hard to make sure that any of the original Yellowstone fans would have something to grasp onto.”
Grimes also explained the intention behind the storytelling for anyone coming in new. “But if you’d never seen Yellowstone, we wanted this show to make sense on its own as well. I think we accomplished that as much as we possibly could.”
He looked back on how the idea formed. too—first raised while filming the last few episodes of the original series. “They started bringing it up when we were filming the last few episodes of the original series,” he recalled. “There started to be some offers for a spinoff. and I hadn’t gotten one yet. and I was like. ‘I guess that’s it for me.’” Then. the offer came: “And then I got a call and it was like. ‘It’ll be CBS primetime. and it’ll be more of a procedural format.’”.
In Marshals, the “procedural format” is where Kayce’s past collides with his new job. The show’s mission statement frames it as the last line of defense in a region’s war on violence. and the official U.S. Marshal duties spell out what that defense actually looks like: federal fugitives apprehended. federal judges protected. prisoners transported. witness protection run. and seized assets managed. What changes for Kayce isn’t the kind of stakes—it’s the scale. He’s still hunting for justice. He’s just doing it in a federal uniform.
Marshals Yellowstone spinoff Kayce Dutton Luke Grimes U.S. Marshal duties federal fugitives Witness Security Program federal judges federal prisoners seized assets