Gunfight at Comanche Creek

In this western, set in 1875, an agent for the National Detective Agency is assigned to find the murderous outlaw gang that has been breaking convicts out of prison and helping them to commit more crimes. The resulting crimes cause the bounties upon the fugitives' heads to rise. The outlaws then kill the convicts and reap the generous rewards. Fortunately, the agent succeeds in infiltrating the group and killing the leader.