Alfredo Gomez, the greatest boxing hero ever to come from Mexico, wonders why two of his most promising boxers are not showing up at his gym. It turns out the two young men have given up boxing in order to travel down the Trail of Death, the notorious cocaine trail that leads from northern Mexico into Texas. Alfredo decides to disguise himself as a poor migrant worker and travel down the Trail himself. But Alfredo gets more than he bargained for. At the end of the Trail, he meets a graying middle-aged alcoholic United States senator, Senator John Henry Longfellow from Texas--the last living witness to the conspirators as they planned the assassination of President John Fitzgerald Kennedy.