By chance, two inmates of Yuma State Prison, Ted Logan (Micky Molina) and Ricardo Montero (José Varela), find themselves free, with before them an inhospitable desert and an adventure to run, Indians and an implacable Marshall. John Donovan (Pedro Lopez), Ted and Ricardo's cellmate, who had previously won his freedom after eight long years behind bars, embarks with his brother Frank (Alex Navarro) in search of those who betrayed him.