 The film takes a semi-documentary approach to its subject, examining the phenomenon and its accompanying festival, which draws thousands of people to Nong Khai each year, as well as providing a glimpse at Isan culture, Thai folklore and such practices as eating insects.Khan, a Nong Khai native now attending university in Bangkok comes home for the annual Naga fireballs festival, just as a debate is raging over the cause of the fireballs.A local physician, Dr. Nortai, believes there is a scientific explanation for the phenomenon.