Kittypets Unite: Into the Wild

Rusty is an adventurous, kind-hearted young tom, often shadowed by his spunky, rough and tumble sister, Princess, and fretted over by their anxious friend/adoptive brother, Smudge. However, when Rusty and Princess meet ThunderClan and decide to join them, tired of their neglectful humans and the boring life of a house cat, Smudge offers to come along. But nothing is as it seems...