George and Margaret Blackledge own a small horse ranch in 1960s Montana. When their son dies tragically, they are left to pick up the pieces and care for their young daughter-in-law, Lorna, and grandson.
Fast forward a couple of years, and Lorna has married a new fella. As the grandparents suspect, though, this new guy ends up not being a very nice guy. When the couple relocates the boy suddenly, the grandparents decide to give chase and bring their grandson back to a good home.