Thanks to permission from Sonic, the treasure hunter Rouge is finally given authority over Emerl. The stealthy bat wastes little time in planning a jewel heist, if only she can steal the robot away from Sonic and his friends. Thanks to an untimely appearance of one Amy Rose, Rouge gets her chance after a simple battle with the obsessed hedgehog. Back in her base at Night Babylon, Rouge attempts to train Emerl in the art of thievery but is interrupted by Amy on a few occasions. Returning to Emerald Town, Rouge and Emerl manage to steal a Chaos Emerald from a central building only to be confronted by Team Sonic...