Hubert Bonisseur de la Bath, A.K.A. OSS 117, is the French spy considered by his superiors to be the best in the business. The year is 1967 - he's been sent on a mission to Rio de Janeiro, to find a former high-ranking Nazi who went into exile in South America after the war. His eventful investigation takes him all across Brazil, from Rio to Brasilia and the Iguazu Falls, accompanied by a charming Mossad agent who is also looking for the Nazi. The man is charming, and so is the young woman. Set to the strains of bossa nova, their tale is by turns an adventure and a love story.