When fourteen-year-old Jace Wilson witnesses a brutal murder, he's plunged into a new life, issued a false identity and hidden in a wilderness skills program for troubled teens. The plan is to get Jace off the grid while police find the two killers.

The result is the start of a nightmare. The killers, known as the Blackwell Brothers, are slaughtering anyone who gets in their way in a methodical quest to reach him. Now all that remains between them and the boy are Ethan and Allison Serbin, who run the wilderness survival program; Hannah Faber, who occupies a lonely fire lookout tower; and endless miles of desolate Montana mountains. The clock is ticking, the mountains are burning, and those who wish Jace Wilson dead are no longer far behind.

"Outstanding in every way...Don't you dare miss it." --Lee Child