One day tails was walking in the jungle. Right before his eyes, Sonic was kidnapped! Tails panicked. Amy and knuckles help Tails rescue Sonic. Shadow is back and badder than ever! Though he was still crying. He then later let's E-123 Omega and E-102 Gamma kill each other. He then starts crying again ( because Rouge left team dark, and Omega and Gamma are dead ).
Because of this Eggman says " Man! You must have issues or something." Tails, Amy and Knuckles meet Ego ( A fan inspired character I made up) and give chase. They win without Sonic.
Some of sonics rivals like silver, are summonsed by eggman to kill sonic and work to build eggmanland. They like killing sonic, silver didn't agree and in fact, no one agreed. Shadow and Ego are caught fighting by eggman.
Then Tails fight Shadow and Ego and they are defeated. Sonic is finally saved from robotink by Tails. Leaving the chatox complaining saying, " we wanted to be the hero's this time." In the end, Ego ( who was presumably killed by tails in his super form and knuckles in his super form), rebuilds Omega and Gamma, though gamma was once again killed in hot shelter by beta ( mik ||).