The most highly decorated Native American in the history of the United States Cavalry, Jolon Winterhawk is a combat veteran of countless bloody skirmishes during the American Civil War. He's a man of honor, struggling with sworn allegiances to two different nations-the country he's sworn to protect, and the tribe he's promised to defend.

During a top-secret mission to escort a military gold train through Oregon's rugged Cascade Mountains, Winterhawk emerges as the sole survivor of a large-scale ambush. Duty-bound to complete the assignment and honor the sacrifices of his fallen comrades, Winterhawk makes the fateful decision to personally deliver the precious cargo of gold.

While Winterhawk embarks on a treacherous wagon trip across miles of dangerous wilderness, an aerial unit from the Army Balloon Corps has been dispatched to locate the missing train. Soon, the aeronauts seize upon a diabolical opportunity-stealing the gold for themselves.

Outnumbered and outgunned, Winterhawk soon finds himself in the fiercest battle of his life. But he quickly discovers that man is not his greatest enemy. Because there's something else lurking deep in those woods. A monster of myth, a horrifying creature of enormous size.