Maurizio is a stubborn boy who grows up near the fiumara, where people throw away whatever they no longer need. This open-air dump becomes his playground, where among wrecked cars and other treasures large and small, he begins to dream of playing in the town band. Mamma Rosa looks on his musical aspirations as a childish whim, a luxury that the family cannot afford. And so, between the good advice by Mosè the donkey and the pranks by chicken N’Giulina, Maurizio is faced with a growing series of adventures and comes to the realization that, if his dream is to come true, he must be determined to see it through right to the end.
八公（Forest 饰）是一条谜一样的犬，因为没有人知道它从哪里来。教授帕克（理查·基尔 Richard Gere 饰）在小镇的火车站拣到一只走失的小狗，冥冥中似乎注定小狗和帕克教授有着某种缘分，帕克一抱起这只小狗就再也放不下来，最终，帕克对小狗八公的疼爱感化了起初极力反对养狗的妻子卡特（琼·艾伦 Joan Allen 饰）。八公在帕克的呵护下慢慢长大，帕克上班时八公会一直把他送到车站，下班时八公也会早早便爬在车站等候，八公的忠诚让小镇的人家对它更加疼爱。有一天，八公在帕克要上班时表现异常，居然玩起了以往
