For years, Julius Arile and Robert Matanda thrive among the roaming bands of warriors that terrorize the countryside of northern Kenya. By the time they reach their mid-20s, stealing cattle and running from the police are the only things they know. When both warriors suddenly disappear from the bush, many of their peers assume they are dead or have been arrested. Instead, they have traded in their rifles for sneakers -- in hopes of making it big as professional marathon runners.