Jon Ronson follows David Icke as he promotes his theory that "the elite are genetically descended from a race of 12-foot, blood-drinking, shapeshifting lizards". During the film, Icke is accused by a leftist protest group (including Richard Warman, lawyer and former Green Party of Canada candidate) in Canada of antisemitism. The documentary explores the theme of whether Icke literally means lizards, as he steadfastly maintains, or whether the reptilians are a coded reference to Jews, an assertion which Icke vehemently denies. Ronson concludes that Icke is probably not an antisemite, and comes to have misgivings about the Icke protesters' methods and their attempts to silence Icke.