As a militia movement invades Arizona 's Cochise County, a gun dealer dies mysteriously, and his stock of high-powered weapons vanishes, Sheriff Joanna Brady investigates two other murders that point to armed separatist Alton Hosfield, a probe that threatens her own life and those of her family.

On a beautiful sunny day in the Coronado National Monument, an elderly couple's car goes off the side of a mountain and into oblivion. The terrain is so rocky that a helicopter must be flown in to retrieve the bodies, and to make matters worse, a thunder-storm is looming on the horizon. Hours later and miles away, the subsiding rain reveals gruesome evidence: two trash bags containing human remains. It's just another day in the life of Cochise County sheriff Joanna Brady. Back at home, Joanna has a newborn baby, a teenage daughter, a writer husband, and a difficult mother to deal with. But in the field, it turns out that she has much more on her hands. The remains are those of a handicapped woman who had wandered away from a care facility with a suspicious track record. Another resident, with whom the woman may have been involved, has also been reported missing. Meanwhile, a note is found in the glove compartment of the car lying twisted down the mountainside...

With grit, courage and dogged determination, Joanne challenged the status quo -- and won. Now, as newly elected Sheriff of Cochise County, Arizona, she must battle the prejudice and hostility of a mistrustful, male-dominated police force -- and solve a grisly double homicide that threatens to tear the sleepy desert community to pieces. For the two bodies baking in the harsh Southwestern sun are connected by sinister threads that reach back generations -- and by devastating family secrets of greed, hatred and shocking abuse that could destroy the innocent along with the guilty.