Shadow's tragic past – rife with conflict and loss – haunts his thoughts. But these nightmares come to him while wide awake! Could some sinister force be beckoning to him through his memories?

Shadow’s search for answers brings him into the crossfire with his allies and Dr. Eggman. Is Shadow’s unrelenting quest for answers worth the cost? And what will it cost Shadow to get the support he needs?

Shadow leads Rouge and Omega into the heart of a G.U.N. military facility as the next step in his search for answers. The military organization that did so much harm to him in the past is now the only thing between him and his goal: the Space Colony ARK!