The Man from the Alamo

The name of this movie is The Man from the Alamo released in 1953-08-07 and it's main theme is During the war for Texas independence, one man leaves the Alamo before the end chosen by lot to help others' families but is too late to accomplish his mission, and is branded a coward. Since he cannot now expose a gang of turncoats, he infiltrates them instead. Can he save a wagon train of refugees from Wade's Guerillas?.