Lyndon B. Johnson is President, Beatlemania is in overdrive and gasoline costs 30 cents a gallon when Ned Parker retires as constable in Center Springs, Texas. But his plan to live a quiet life as a cotton farmer is torpedoed. A phone call leads Ned to a body in the Red River and into the urgent investigation headed by his nephew, the newly elected constable Cody Parker. Together they work to head off a multi-state killing spree that sets northeast Texas on fire.

As the weeks pass, Ned's grandchildren, ten-year-old Top and his tomboy cousin Pepper, struggle with personal issues...