Dark Revenge

After Rage aids Shadow and Rouge on a G.U.N. mission they find a comet that is almost identical to The Black Comet. Soon they find out of Black Dooms survival and the Black Arms Home Planet. Now with their home planet back at war with the Black Arms it is up to Rage, Sonic, and the gang to help stop the Black Arms. But what happens when Christain The Dark joins forces Black Doom?