Sonic Underground 125 - Flying Fortress

What is supposed to be a vacation for Sonic, Manic and Sonia turns into a battle to save Mobius when Robotnik attacks with his newest weapon – the Flying Fortress. Sonic, Manic and Sonia must fight Dr. Robotnik and his two sidekicks, Sleet and Dingo and the SWAT Bots, with the aid of their metal medallions and bring peace to Mobius and find mother!