This episode of PBS' "American Experience" profiles Lyndon Baines Johnson, architect of the "Great Society" and one of the U.S. presidents whooversawconsiderable socialand political upheaval during his time in office. From the assassination of President John F. Kennedy to unrest over civil rights and the war in Vietnam, this documentary alsoexamines LBJ's early life growing up in Texas, the ups and downs of his career, and his disillusioned retirement from the world of politics.