The Wise River by James D. Schultz

When Tom Butler sought to escape from the stresses of work and an oppressive father, he found more than a secluded wilderness. This tale of brotherhood and dark heroes follows the misadventures of Jack Butler, a Montana fly fishing guide, and his wayward but successful brother. While visiting Jack, Tom is inexplicably terminated from their father's Ford dealership, sending Tom to seek comfort from the river and a pint of bourbon. When Tom's hope seems lost, an unlikely hero surfaces on The Wise River.