Casey’s new journey opens with him abandoning the Yellowstone ranch but carrying the trauma of losing his family—only to face an even deeper blow when a violent cartel attack forces him into the U.S. Marshals and pulls Tate into the line of fire. As Casey rebuilds his life with Rainwater and Mo at his side, the trailer hints at a devastating secret surrounding Monica’s disappearance that the first episode promises to reveal. Let’s watch the video to see how this tragedy ignites Casey’s most dangerous chapter yet.