

Chule has been developed the 'mouse packing machine'. The school stage play featuring Tanya is getting big room full of mouses. Fievel was very unhappy for a role he got, but his role turned out much more magnificent than thought when Cat R. Waul kidnaps the teacher and cancels the play and arranges the singing concert instead.
All mouses of the village are going to The Cheese Festival but Fievel misses the trip. Cats come to town are searching mouses but they capture Tiger. Fievel starts to think like The Lonesome Ranger and cats will be in trouble...
Fievel continously be late for school because of many adventures with Tiger, so he is told not to meet Tiger anymore. Tiger has written to Miss Kitty and told her that he is a sheriff. Fievel must help him when Miss Kitty arrives to town.
Fievel wants to borrow his friend Tony's bumerang and it flies straight to Cat R. Waul's pocket. Fievel, his sisters and Tiger are going to get the bumerang back and they have great adventure by the river.