Carlos Castaneda rose to fame after the publication of his book, The Teachings Of Don Juan. The book is based on his anthropological fieldwork in the Mexican desert in the Sixties with a Yaqui Indian shaman, whom he called Don Juan. The Teachings Of Don Juan was an instant success for Castaneda, persuading thousands of Americans to set off for Mexico in search of drugs, nirvana and enlightenment. Castaneda was dubbed the "grandfather of the New Age movement" by Time magazine and awarded a doctorate in anthropology from UCLA. But an investigative journalist claimed Castaneda had faked his fieldwork and that Don Juan was merely a figment of his imagination. This film investigates the controversy that surrounded Castaneda's book and explores the practices of today's Yaqui Indians with Dr David Shorter, who has spent the last decade working among them in Mexico.