Princess Sally calls Sonic the Hedgehog to discuss a special item in her father's jewelry box: the Crown of Acorns and the four Freedom Emeralds adorning it. Meanwhile, Antoine is training several mobians for his "army" against Dr. Robotnik. Sally asks Sonic to retrieve the family crown, but it's not in the jewelry box. They're shocked until Sonic suggests that the emeralds were stolen by one of Robotnik's spies, posing as one of Antoine's soldiers. They aren't certain who it is, so Sonic runs in a circle. He runs so fast that the rubber on his sneakers burn, creating smoke and triggering the smoke detectors. The smoke detectors set off the sprinkler system, causing one of the army men to rust and shiver, revealing him as a robotic spy. The robot explains he has scattered the emeralds and