After settle in greenness hill, Sonic is eager to turn out he has what it take to be a true hero. His trial come when Dr. Robotnik return, this clip with a new spouse, brass knucks, in hunt for an emerald that has the powerfulness to destruct civilization. transonic team up with his own buddy, dress suit, and together they ship on a globe-trotting journeying to happen the emerald before it fall into the incorrect custody.