Ulisse offers his spectators a very particular journey: a journey through time, to closely observe the life of a group of Neanderthal men. Thanks to careful studies, a group of scientists and filmmakers have reconstructed the appearance and way of life of these prehistoric men who inhabited Europe for a very long period, between approximately 100 thousand and 30 thousand years ago. We will therefore have the opportunity to follow the group life, the hunting, the affections, the daily problems of a small tribe of Neanderthals, played by actors whose faces have been reconstructed following the most recent research. A day 35 thousand years ago, recalled in all its details, from food, to homes, to births, to diseases, up to the dramatic encounter with Homo Sapiens sapiens, who migrated to Europe from Africa in that period.