Ep 12. Season 2, Episode 12

After Antoine saves Sally's life during a raid, Sonic can't stand his bragging and zips in to see Uncle Chuck, who finds out his "bug" in Robotnik's HQ is malfunctioning. While Chuck goes to fix it, Sally and Bunnie, flying a "Rotor- created" Hover-Unit, find the Doomsday Machine and download its schematics, along with a Top Secret file detailing a plan to catch a spy by damaging the "bug" at HQ.