Sonic is once again after eggman as robotnik is collecting the magma of the center of the earth with his magma collector machine.
he does so as the magma is very heavy and hard once its smelted sonic would not be able to damage any of his robots or mechs.
sonic heard the infernal noises the machine made and ran at the speed of light while destroying cheaply made robots without getting damaged as he has grown used to it after all these years.
he decended into the dark and cold caves of the earth and emediatly jumped on egmans ship,he tried to fight back with lasers and missiles but sonic avoided them all and blew up his ship.
he was able to escape before sonic could grab his escape shuttle, sonic was annoyed and tired of egmans constant escapes abd decided to talk to his friends.