Shadow, the quiet, mysterious rogue of a hedgehog, goes on an adventure to discover his cloudy past and find out who - or what - he really is, all the while caught up in a three sided war between the GUN army, Dr. Eggman, and a strange race of alien-like creatures. Shadow is determined to get to the bottom of this entire matter and will stop at nothing to get the information he wants, even going so far as to pack some serious heat....