A tribute to the Guardians of the Galaxy brought to readers by the team that created them, writer Mike Gallagher and artist Jim Valentino. In an alternate future, Sonic comes back to Mobius after being in space for a thousand years to find the planet in worse shape than when he left it. Teaming up with the descendants of the original Freedom Fighters, the heroes combat an evil so great, they with the original Robotnik was back.
Taken from SonicHQ Web Site. http://sonichq.mobiusforum.net/newsite/