A mountain man can survive anything even a cold day in hell... Nathaniel Squire is a giant of a man, and the only one Col. Leander Melton thought could lead his pack of greenhorn would-be trappers into the mountains. And deep in Blackfoot territory, Squire must teach the youths to face the ways of survival, the rage of the Blackfeet, the cunning of a traitor—and what it means to be a mountain man.

When giant mountain man Nathaniel Squire brings his small, young brigade to rendezvous, he figures to show the youths a shinin’ time. But a dangerous secret is revealed and the ghosts of the past arise to haunt him, leading to a war with the Blackfeet that could mean the end of even the mighty Squire.

Having had enough of leading a fairly large brigade of trappers, giant mountain men Nathaniel Squire heads to the Rockies with just a few of his young friends. The small group is having a fine season, pulling in plenty of plews. But another group happens by and tells Squire that last year’s brigade, under Colonel Leander Melton, is in dire straits, having been raided by the Blackfeet under the direction of Jacob Meisner, an old enemy. Squire and his group plunge headlong into an effort to save Melton and his brigade—and then, one way or the other, take to the vengeance trail.