Sonic, Manic and Sonia are thrown into a universe that almost seems to parallel their own, however in this dimension, they are not the in the Underground, the Hedgehogs are the rulers of Mobius.

The third cartoon incarnation of the speedy, smart-assed Sega mascot Sonic the Hedgehog finds him and his two siblings Manic and Sonia searching for their mother, Queen Aleana, while ...

Discover showtimes, read reviews, watch trailers, find streaming options, and see where to watch Sonic Underground: Secrets of the Chaos Emerald (2008). Explore cast details and learn more on ...