Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik. Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.Sonic arrives on Earth, hides in Green Hills, and teams up with Tom Wachowski to stop Dr. Robotnik.