Sonic Underground: Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspects that the Chaos Emerald is keeping the fortress aloft, they head to the Floating Island to enlist the help of Knuckles. But we all know how hard-headed Knuckles is...

Starring:

Jaleel White, Maurice LaMarche

Genre:

Action, Animation, Thriller, Sci-Fi, Adventure, Fantasy, Music