Things go from bad to worse when Robotnik obtain a Chaos Emerald from the destroyed Master Emerald. He along with Agent Stone and Metal Sonic use it to break into a G.U.N facility. Teaming up with Shadow, they intend to defeat the Hedgehog once and for all. And worst of all famous jewel thief Rouge the bat is after the Chaos Emeralds as well. Now Team Sonic and Team Rose must stop Team Robotnik and save humanity.
