The Walking Hills

The Walking Hills is a 1949 contemporary western film directed by John Sturges and starring Randolph Scott and Ella Raines. The films plot has film noir elements in its story of a search for an old treasure by nine men including a detective tracking a fugitive, several others who have things to hide, and a love triangle involving the two leads and the fugitive.

It turns out that Dave Wilson had fled because he accidentally killed a gambler who accused him of cheating at cards. The mans father, King, hired a detective who turns out to be Frazee, and who has been sending signals to King and a posse with a heliograph. Johnny, Chalk and Cleve are also on the run and each believes Frazee is after him. Frazee shoots Johnny during a fight. Jim, told by Johnny that he would rather die than go to prison, has Cleve hide the horses to keep Johnny from being found out if someone goes for help.A wagon is uncovered and tempers flare when no gold is found. Johnny dies right after Frazee admits he watched Chris as hangmans bait, waiting for Dave to show up. A terrible sand storm develops, and Chalk tries to stampede the horses, killing Frazee with his own gun. Jim kills Chalk as he tries to escape. The storm uncovers the entire wagon train. Old Willy finds it, but its empty. Dave decides to turn himself in to the law and Chris, still in love with Dave, rides after him. Jim has a hunch, meanwhile, that the wagons werent entirely empty when Old Willy found it. He is right. ........

Source: Wikipedia