Dark Moon Rider

Brent and Brian Sackett are headed in opposite directions. Brent is nearing California while Brian is headed for Fort Worth, Texas to start his training as a railroad detective.
Brent, however, is captured by two Texas Rangers and thrown in a makeshift jail where he is to be held until a lawman from Texas can come to take him back there.
Meanwhile, Shell Sackett, the uncle and feared bounty hunter of Brent and Brian, is on the trail of three men who robbed a stagecoach and killed his futur...