Troy Phelan, a 78-year-old eccentric and the 10th-richest man in America, is about to read his last will and testament, divvying up an estate worth $11 billion. Phelan's three ex-wives, their grasping spawn, a legion of lawyers, several psychiatrists, and a plethora of sound technicians wait breathlessly, all eyes glued to digital monitors as they watch the old man read his verdict. But Phelan shocks everyone with a bizarre, last-gasp attempt to redistribute the spoils, setting in motion a legal morality tale of a contested will, sin, and redemption.
Our hero, Nate O'Riley--a washed-up, alcoholic litigator with two ruined marriages in his wake and the IRS on his tail--is dispatched to the Brazilian wetlands in search of a mysterious heir named in the will. After a harrowing trip upriver to a remote settlement in the Pantanal, he encounters Rachel Lane, a pure-hearted missionary living with an indigenous tribe and carrying out "God's work." Rachel's grave dedication and kindness impress the jaded lawyer, so much that a nasty bout of dengue fever leads him to a vision that could change his life.