In this western, the sixth in the European-produced "Winnetou" series, Old Surehand and his Apache sidekick Winnetou endeavor to capture the outlaws who killed their friend the wagon master. To do so, Winnetou volunteers to guide the leaderless wagon train across the treacherous Indian land himself. Sure enough, they encounter Navajos, but fortunately Winnetou manages to get them safe passage until an avaricious oil swindler tries to cheat local settlers out of their land and ends up killing the Navajo leader's son. Naturally the Indians assume that Winnetou has betrayed them and go to war against the settlers. Fortunately, Surehand rides to the rescue. He is accompanied by the swindler whom he captured. Peace is restored.