In 1938, the town of Sturgis, S.D., was the site of a small, almost inconsequential motorcycle race, which spawned one of the biking world's most popular annual events, the Sturgis Rally, now attracting hundreds of thousands of riders. This documentary shows the diverse community that arrives every year when the population of Sturgis explodes from about 6,000 to almost a half-million, as well as the event's impact on town residents.