Moss tells the story of Pennsylvania's Indian agent during the French and Indian War, Conrad Weiser, one of the greatest American pioneers. As a young teenager, he participates in the revolt of the German settlers against the British colonial agents of New York, the first rebellion in the British colonies. Later his father sends him to live among the Mohawks, where he learns their language and customs and finds his personal mission in life: to be a guide and interpreter. When the German settlers are evicted from their lands, he leads the resistance. Ultimately, he leads many of his people to Pennsylvania, where they carve farms and a new life out of the wilderness and where Weiser wins enduring renown.