After going missing for nearly a year, Shadow suddenly arrives at the Freedom Fighters' doorstep, looking to move in with her and her family. Sally Acorn welcomes him with open arms, but Tails isn’t too thrilled about the tearful reunion as Shadow’s arrival serves to shake things up quite a bit around the household. Shadow converts the garage into his personal laboratory and gets to work on all sorts of dangerous sci-fi gadgets and contraptions. That wouldn’t be so bad if not for the fact that Shadow continues to involve Sonic and the others in his insane adventures.