Looking for a new home, the Ogglies end up in the beautiful, peaceful village of Smelliville. Unfortunately, Smelliville has a stinky problem: The local garbage dump is spoiling the place. Something must be done.

Marnie is a chubby cat, treated like a princess and getting everything she wants. When she is forced to make her own way in the world, she realizes who she really is - a lonely cat in need of friends.