After his last plan failed, Dr. Eggman discovers an ancient technology on the Starfall Islands and installs his AI program Sage to hack in and take over. But there is more to this technology than he realizes, and unintended consequences immediately come to bear. Meanwhile, Sonic finds himself all alone on one of said islands, after flying into a wormhole with Tails, Zipp and Sunny. Now, separated from his friends, he has nothing but an AI voice guiding him to collect the Chaos Emeralds, not knowing that darker forces are behind him and his powers.