Some time after the Mousekewitz's have settled in America, they find that they are still having problems with the threat of cats. That makes them eager to try another home out in the west, where they are promised that mice and cats live in peace. Unfortunately, the one making this claim is an oily con artist named Cat R. Waul who is intent on his own sinister plan. Unaware of this, the Mousekewitz's begin their journey west, while their true cat friend, Tiger, follows intent on following his girlfriend gone in the same direction.

一位来自纽约的编辑对一本暴力小说的作者着迷，她私下里调查了他的过去

《美国鼠谭》（An American Tail）又译为《老鼠也移民》，是1986年由美国环球影业公司制作发行的动画喜剧电影作品。影片描述的是关于老鼠家庭移弗民荒的故事。老鼠Fievel，在从沙皇俄国移民到美国的途中跟家人失散，于是它开始漫长的孤独旅程，为了寻找家人而四处闯荡，在纽约遭遇层出不穷的趣事和挑战。经过种种磨难，结果成为当地英雄，并因此得以和家人团聚。导演唐·布鲁斯（Don Bluth），监制史蒂文·斯皮尔伯格。本片动画制作精致，故事温馨感人，很有独创性和想象力。