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 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.