Story : The documentary in this episode, Story of a Baboon, tells the story of a young baboon whose father, the dominant male of the group, is deposed following a bloody battle and replaced by a stronger male from another group. The male baboons who have become dominant will kill the offspring of their predecessors. Until weaning, the baby baboon is very vulnerable. Will it survive? By following the life of our young baboon, the documentary reveals behaviors rarely filmed and allows us to better understand the complex society of these intelligent primates. The Atlantic was one of the scenarios of the bloody events of the Second World War: the protagonists were the feared U-Boots, the submarines of the German Navy. Alberto Angela visits two of the three intact U-Boots still existing in the world, in Germany and France: he describes their technical aspects and recalls the state of mind and daily life of the crews, made up of about fifty young people in their early twenties.