Set in 1955, French secret agent Hubert Bonisseur de La Bath/OSS 117 is sent to Cairo to investigate the disappearance of his best friend and fellow spy Jack Jefferson, only to stumble into a web of international intrigue.
In 1967, OSS 117 is sent to Brazil in order to retrieve a microfilm list of French Nazi sympathizers, only to once again unknowingly set foot into a bigger international intrigue.
In 35,000 BC, the tribe of the Dirty Hairs is at war against the tribe of the Clean Hairs for eight hundred years, trying to get their shampoo. The chief of the Dirty Hairs sends his daughter Guy disguised to the enemy tribe to get some shampoo for his tribe. When the healer of the Clean Hairs tribe surprisingly kills two cavemen of his tribe, their imbecile chief assigns Pierre with curled hair and Pierre blonde to investigate the murder and find the criminal.
