Robotnik plans to block out the sun and extinguish all life and nature on the planet Mobius. Then he creates a robot son and tries to train him in the ways of wickedness. But when Robotnik Jr. meets Sonic, he becomes a naturalist and teams up with Sonic to thwart Robotnik's evil scheme.
Sonic the Hedgehog, the most fearless hero on Planet Mobius, uses his supersonic speed and teenage irreverence to thwart the comedically despicable Dr. Robotnik. Sonic’s idolizing little buddy, Tails, tags along on every fast-action, gag-driven adventure.