A detailed chronicle of the famous 1969 tour of the United States by the British rock band The Rolling Stones, which culminated with the disastrous and tragic concert held on December 6 at the Altamont Speedway Free Festival, an event of historical significance, as it marked the end of an era: the generation of peace and love suddenly became the generation of disillusionment.

This documentary from Albert and David Maysles follows the bitter rivalry of four door-to-door salesmen working for the Mid-American Bible Company: Paul "The Badger" Brennan, Charles "The Gipper" McDevitt, James "The Rabbit" Baker and Raymond "The Bull" Martos. Times are tough for this hard-living quartet, who spend their days traveling through small-town America, trying their best to peddle gold-leaf Bibles to an apathetic crowd of lower-middle-class housewives and elderly couples.