The world was in big danger. Robotnik's grandfather had a plan for destruction manipulating Shadow in his plan only to use his power as he lies to him that Maria wanted revenge.
When in reality he lied to him because Maria wanted Shadow to be a hero on earth. However, blinded by anger he charged the huge station with his chaos power.
Sonic, also blinded by his anger, in his super form attacked Shadow sending him to the moon where no one knew what happened.
Some time later both Hedgehogs could be seen in their super forms as it seemed like they had teamed up against Gerald. Even Ivo was willing to help.
Sonic and Shadow reached the station just in time as the laser blasted towards earth and they stopped it while Ivo tried to turn the station away from earth.
However, Sonic couldn't last, losing his super form and Shadow pushed him away to save him, knowing he couldn't last that long.
Shadow dissappearing from sight as you watched Sonic fall back to earth "Sonic!" You yell as you run up to where he crashed.
You went by his side, kneading next to him before looking up, looking for Shadow thinking that he saved Sonic but no one knew what was currently happening with him.