Synopsis: Sheriff Chadbourne transports convict Ben Trask to El Paso in a covered wagon. The wagon also carries sea captain Theodore Bess and married couple Laura and Jerry Niblett. The group comes upon a wounded Native American, banished by his tribe, who offers to lead them to gold. But then the tribe attacks the wagon, killing Jerry and wounding Chadbourne. Ben is freed to help, but the group's troubles have only begun.