Wikimedia Commons/Marshals TV series TV Kayce Dutton trades the ranch for a badge in Marshals, the new Yellowstone spin-off. Premieres 2026 on CBS. March 19, 2026 AceShowbiz - Marshals is the newest addition to the expanding Yellowstone franchise, focusing on Kayce Dutton's transition from ranch life to law enforcement. Created by Spencer Hudnut and premiering on CBS in 2026, the series attempts to blend the signature neo-Western drama with procedural crime elements, following Kayce as he becomes a marshal in Montana.