After being forced to flee to Earth to escape those seeking his power, Sonic remained in hiding for ten years until he accidentally made his presence known, becoming the target of the sinister Dr. Ivo Robotnik. However, thanks to the help of Tom Wachowski, Sonic managed to defeat Dr. Robotnik, and banished him from Earth and establish himself a better life with the Wachowski family. As time went on, Sonic tried beginning a superhero career with limited success. Regardless, his moment came when Robotnik returned with Knuckles the Echidna, seeking the Master Emerald. Teaming up with his new ally Tails, Sonic embarked on a globetrotting adventure to stop Robotnik, during which he befriended Knuckles. After defeating Robotnik, Sonic forms a new order with Tails and Knuckles to safeguard the Master Emerald from evil. For the next few months, Sonic enjoyed his family and newfound friends until the order now known as Team Sonic was recruited by the Guardian Units of Nations to face the powerful, vengeful alien Shadow the Hedgehog, who later teamed up with Robotnik and his grandfather, Gerald Robotnik, to destroy Earth with the Eclipse Cannon. After Tom was injured by Shadow, Sonic sought revenge against him, but after resolving their differences and realizing that revenge would get them nowhere, the two hedgehogs teamed up to save the Earth and successfully stop the cannon.