Sonic the Hedgehog is an animated television series based on the video game series of the same name. It was story edited by Len Janson and produced by DIC Productions, Sega of America, and the Italian studio Reteitalia in association with Telecinco. It is the second of DIC's Sonic cartoons, following Adventures of Sonic the Hedgehog.

Plot

The series takes place on Mobius, a planet mostly populated by anthropomorphic animals. The Kingdom of Acorn, based within the metropolitan city of Mobotropolis, was at war with an unseen enemy. King Acorn recruited a human scientist named Julian to build war machines to end the war with a victory. However, during peacetime, Julian and his nephew Snively launched a coup d'état against the kingdom. The King is banished to another dimension called the Void and most of the citizens are captured and permanently transformed into robot slaves, through a machine called the Roboticizer. Julian renames himself as Dr. Robotnik, now the dictator of Mobius. Mobotropolis is renamed Robotropolis, a polluted, industrial cityscape.