"668" is a sensation. A journey within travel itself. An everyday story that can be explored from different perspectives. It is a local train with only two carriages, and we see it from the outside only by shooting its stand-in model. This, alternated with shots of the train interior, seeks to impart something of a visionary dimension to the journey. For the young people of these places, that little train leads towards the metropolitan dream, the new and the unknown.