Sergeant Ben Carter and his men have been in the field, fighting outlaws and renegade Indians for a long time. Their commander decides to give them a break and assigns them 'light' garrison duty, primarily escorting work details, mail wagons, and the like. Light duty, though, turns out to be anything but. First, a band of outlaws tries to steal the payroll Ben is escorting from Santa Fe to Fort Union. Then, he and his men are tasked with driving a herd of cattle from the Texas border to the fort, a job that turns out to be almost as dangerous as fighting Indians. Ben faces his toughest...