After settling in Green Hills, Sonic is eager to prove he has what it takes to be a true hero. His test comes when Dr. Robotnik returns, this time with a new partner, Knuckles, in search for an emerald that has the power to destroy civilizations. Sonic teams up with his own sidekick, Tails, and together they embark on a globe-trotting journey to find the emerald before it falls into the wrong hands.

Powered with incredible speed, Sonic The Hedgehog embraces his new home on Earth. That is, until Sonic sparks the attention of super-uncool evil genius Dr. Robotnik. Now it’s super-villain vs. super-sonic in an all-out race across the globe to stop Robotnik from using Sonic’s unique power for world domination.

Sonic, Knuckles, and Tails reunite against a powerful new adversary, Shadow, a mysterious villain with powers unlike anything they have faced before. With their abilities outmatched in every way, Team Sonic must seek out an unlikely alliance in hopes of stopping Shadow and protecting the planet.