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.在这个人心最容易柔软和受感动的时候，楚乐儿却保持了高度的清醒，纵然她第七部第八百一十一章这只是开始的身份是局外人，却也是极为难得的。