Chris Grant’s Osmosis Global shingle is launching a first-run unscripted U.S. studio model, with Discovery’s upcoming “Saving Yellowstone

With Dennis Quaid” as the first project. The series, which follows Quaid as he highlights the ongoing threats to the “Greater Yellowstone

Ecosystem” — which spans 58,000 square miles across Montana, Wyoming and Idaho — premieres in the U.S. this Wednesday, Nov. 26, on Discovery and Animal Planet.

 

 

Warm Springs Productions, which is an Osmosis partner and investor, produces “Saving Yellowstone,” which Osmosis has now also sold internationally via distribution deals in Canada (Paramount+), Norway (TV2) and Australia (Sbs).

“If we can own rights again, which we know we can, the next question becomes, ‘what rights do we want to own?’” Grant said. “As it relates to the creation of content, obviously what always has broken through is talent. In the unscripted space, there’s an opportunity to work with premium…

 

 

Luke Grimes has officially made his comeback to the Yellowstone universe, headlining the first complete trailer for the franchise’s latest spinoff, Y: Marshals.

The 41 year old performer reprises his character as Kayce Dutton in the upcoming series, scheduled to premiere in March 2026. The preview, unveiled Tuesday across social platforms, showcases the Montana setting and features a roster of familiar faces that devotees of the original Kevin Costner’s drama will instantly be recognized.

The fresh series focuses on an elite squad of U.S. Marshals operating in Montana who confront challenges ranging from criminal organizations and drug syndicates to Grizzly bears. During the footage, multiple Yellowstone veterans make cameos, suggesting that Y: Marshals will maintain strong ties to its predecessor.

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Yellowstone spinoff Y: Marshals trailer confirms return of major cast members
Luke Grimes is back in the Yellowstone universe in the first full-length trailer for the franchise’s latest spinoff, Y: Marshals

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By Kathleen O’Boyle
23:10 ET, Tue, Nov 25, 2025 Updated: 23:14 ET, Tue, Nov 25, 2025
Yellowstone spinoff with Luke Grimes reveals surprise return of cast regulars from hit Kevin Costner show

Luke Grimes has returned to the Yellowstone universe as he leads the first full-length trailer of a new spinoff for the franchise titled Y: Marshals Yellowstone spinoff with Luke Grimes reveals surprise return of cast regulars from hit Kevin Costner show (Image: CBS/Paramount)
Luke Grimes has officially made his comeback to the Yellowstone universe, headlining the first complete trailer for the franchise’s latest spinoff, Y: Marshals.

The 41 year old performer reprises his character as Kayce Dutton in the upcoming series, scheduled to premiere in March 2026. The preview, unveiled Tuesday across social platforms, showcases the Montana setting and features a roster of familiar faces that devotees of the original Kevin Costner’s drama will instantly be recognized.

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The fresh series focuses on an elite squad of U.S. Marshals operating in Montana who confront challenges ranging from criminal organizations and drug syndicates to Grizzly bears. During the footage, multiple Yellowstone veterans make cameos, suggesting that Y: Marshals will maintain strong ties to its predecessor.

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A notable comeback includes Gil Birmingham reprising his role as Broken Rock Reservation chief Thomas Rainwater. In the preview, he’s shown informing Kayce that all Duttons are natural-born killers, yet notes that Kayce differs because he serves as a “protector.”

Young actor Brecken Merrill, now 17, also returns as Kayce’s son Tate Dutton, depicted seated in a vehicle and appearing considerably more mature than during his final Yellowstone scenes.