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The Hedgehogs steal historical artifacts of Mobuis from Robotnik before he can pawn them off at an auction. Sonic and Sonia take one of the pieces to a university professor who informs them that the artifact is actually a bomb from the Mobian war. The Hedgehogs must act fast to retrieve the bomb and protect the treasure that is the key to Mobius past.
Episodes
Voice Cast
Jaleel WhiteSonic / Manic / Sonia (voice)Voice Actor
Garry ChalkDr. Robotnik (voice)Voice Actor
Maurice LaMarcheSleet (voice)Voice Actor
P
Peter WildsDingo (voice)Voice Actor
G
Gail WebsterQueen Aleena (voice)Voice Actor
I
Ian James CorlettCyrus (voice)Voice Actor
Sam VincentSonic (singing voice)Voice Actor
T
Tyley RossManic (singing voice)Voice Actor
Stevie VallanceSonia (singing voice)Voice Actor
Trailers & Extra Content
Sonic Underground: Vol. 1-2 - DVD Trailer
Sonic Underground - Commercial
