Paul McAllister, an aging military retiree, wants nothing more at this point in his life than to put the wars, cancer, and death of his wife behind him as he numbly glides into his final years doing the only thing he still enjoys – selling weapons and his services as a gunsmith on the gun show circuit of the American southwest. Driving down the road in the Mesilla Valley of southern New Mexico, sandwiched in the few hundred yards between the Robledo Mountains to the West and the Rio Grande to the East, Paul loses consciousness while returning home from a gun show.

Now married, Paul McAllister and Anna Jaramillo McAllister, continue building their fledgling Estancia into the refuge they’ve dreamed of. Where family, friends, and employees can live a life safe from the violence of daily life in the wilderness of the New Mexico Territory. Surrounded by high desert mountains, roving hostile Indians, and bushwhackers, Paul and Anna struggle to overcome devious plots, far and near, as well as the mysterious villains behind those plots.

Paul and Anna McAllister, along with their family and friends, want nothing more than to be left in peace as they continue building Estancia Dos Santos into their querencia, a retreat, a place to rest and relax free from all worry. The mysterious ‘Boss’ has other plans for Paul, Anna, and the Estancia. To thwart those plans, US Marshall Paul McAllister and his deputies take up the trail of corrupt officials, bushwhackers, outlaw gangs, and comancheros. It’s a long, tortuous trail with stops in Las Cruces, Mesilla, El Paso, Tucson, Colorado City, and Santa Fe.

Paul and Anna McAllister begin to implement their plans to bring a railroad and other trappings of civilization to New Mexico Territory while continuing to build Estancia Dos Santos, reduce the animosity between the Apache and White men, and fight the shadowy foe known as "the Boss". Long trips, spies in their ranks, and increasing violence between anti-slavery and pro-slavery groups stretch Paul and Anna's resources in every direction. With the help of their family and friends, they race against time to complete their plans before the incessant drumbeats of war begin in the east.