Retired Texas Ranger Captain Hank Tomlinson intends to spend the rest of his days raising cattle on his Broken Arrow Ranch, and nurturing his frontier town of Luck, Texas. But when the brutal murder and scalping of a mysterious drifter leads to a clash between cavalry soldiers and a band of Comanche Indians suspected of the killing, a full-scale Indian uprising seems likely. Worse yet, the murder of the drifter bears a disturbing resemblance to a string of killings Hank remembers from his distant and violent past as a Texas Ranger. Meanwhile, Hank's twenty-year-old son, Jay Blue, and his adoptive brother, Skeeter, find themselves on the trail of a valuable Kentucky mare who vanished under their watch. The trail leads them into the dangerous haunts of outlaws and vengeful Comanche warriors.