Taylor Sheridan and "Yellowstone" star Luke Grimes are coming to CBS with a new show, "Marshals." CBS Entertainment chief Amy Reisenbach announced the new show yesterday as CBS unveiled plans for the 2025-26 TV season. The new "Yellowstone" spinioff is planned for Sunday nights starting next spring. "Marshals," a tentative title, follows Grimes' character Kayce Dutton. The TV son of John Dutton (Kevin Costner) "puts the Yellowstone ranch behind him and joins up with the marshals using his Navy SEAL skills and cowboy skills to bring justice to the Montana range," Reisenbach said.