
A loner travels with his horse companion chasing villains across the frontier.

An evil ranch foreman tries to provoke a range war by playing two cattlemen against each other while helping a gang to rustle the cattle; each cattleman ends up blaming the other for missing cattle.

Hoppy grieves for Lucky when a posse, believing Lucky to be a bank robber, runs him off a cliff and into a river; a devious lawyer seeks to dominate the valley by taking control of a rancher's precious cattle.

When a gang attempts to defraud a group of Chinese merchants of their claim to a gold mine, Hoppy leads an expedition to find the gold cache among ancient Native ruins.

Johnny is accused of robbing a bank and Hoppy tries to prove his innocence by catching the real crooks.