The network has ordered the Yellowstone sequel Y: Marshals (working title) for its midseason lineup. The new drama will feature Luke Grimes reprising his role as Kayce Dutton, who joins an elite unit of U.S. Marshals. It will air on Sundays at 9 P.M.

The official logline has Kayce “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.”

Deadline first wrote in March that Taylor Sheridan’s Yellowstone universe was eying further expansion beyond Paramount Network and Paramount+, and that the potential offshoot would air on sibling CBS. Sources said showrunner Spencer Hudnut had been working on ideas for over a year for the spinoff while it went through the approval process with Sheridan and getting a commitment from Grimes.

Y: Marshals joins another Yellowstone spinoff series, headlined by Kelly Reilly and Cole Hauser, which was announced last December.

Y: Marshals will be produced by MTV Entertainment Studios with Sheridan along with David C. Glasser executive producing for 101 Studios as well as John Linson, Art Linson, Hudnut, Luke Grimes, Ron Burkle, David Hutkin and Bob Yari. Hudnut will serve as executive producer and showrunner. The series will be distributed by Paramount Global Content Distribution.When asked whether the Yellowstone sequel will look and feel as expensive as the mother ship on Paramount Network, CBS President Amy Reisenbach said “we don’t do cheap.”

“Spencer Hudnut had run a broadcast show before,” Reisenbach said of the former SEAL Team showrunner. “We do have a budget for that show that is in line with other broadcast series.”

As for Sheridan’s involvement, Reisenbach said, “we’re still early in the process. He’s a very busy guy, so we’ll take what we can get.”

Yellowstone fans will recall that Kayce signed the entire land over to Rainwater and his tribe for $1.25 an acre, the price he said 1883’s James Dutton (Tim McGraw) paid when the family settled there. The sale is conditional: the sprawling land can never be developed, and Kayce, wife Monica (Kelsey Asbille) and son Tate (Brecken Merrill) will stay on a small parcel where they’ve built a house and would remain.