After the events of Sonic Heroes, Shadow has abandoned Team Dark to uncover the truth about his past. Near Westopolis, he struggles to cover all the pieces with few memories he has, which have Maria Robotnik abord the Space colony ARK being shot by a GUN Soilder in front of his face. Then, a newspaper headline of celebrations taking place now that the black comet has come back after it's fifty year life cycle blows in the breeze, catching on Shadow's leg, then blowing off into the distance. As shadow ponders about his past, a gaping hole known as Black Doom, appears via his third eye Doom's Eye, and tells Shadow to bring him the Chaos Emeralds "as promised" before dissapearing as the ground around Shadow is pocketed by multiple explosions. Fueled, with a desire to seek out his past and find the truth behind Black Doom's words, Shadow speeds off into the city.
