The Dutton family, owners of the largest ranch in Montana, fight ruthlessly to keep their land from the neighboring Indian reservation and the new chief seeking to reclaim it.

The Duttons deal with a painful family anniversary. Kayce saves a young girl from danger. Jamie and Beth plan their respective political careers. Rainwater makes an ominous threat to the Dutton legacy.

John reveals a family secret to Monica, Jamie ramps up his political career, Beth pushes John too far, Kayce and Rip butt heads, and a new partnership threatens Yellowstone.

A Sheriff’s investigation turns the heat up on Rip. Jamie makes a bold decision about his future and faces the consequences. With the walls closing in, John discovers which family and allies will stand with him and fight.