After defeating Dr. Robotnik, Sonic is living the life of a free hedgehog! He's ready to prove to Tom Wachowski that he's all grown up, so he stays home when Tom and Maddie go on vacation. But Dr. Robotnik is back--with a vengeance! And he's not alone. It's up to Sonic and his new friend, Tails, to stop the villains and save the world!" --
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