Joe Thanks (Terence Hill), a mysterious loner and charismatic genius, convinces two crooks, Bill and his friend Lucy, to plan a swindle against Major Cabot, who embezzled 300 000 Dollars, money which was supposed to help the Indians. Joe thinks up a plan, disguises Bill as the Colonell to fool Cabot and even when things seem to get out of hand, Joe knows exacly what he is doing...