Sonic the Hedgehog, along with several of his friends, went to Paris in order to celebrate Chris Thorndyke's birthday with his parents. At the same time, Nelson and Lindsey Thorndyke were planning on revealing Thorndyke Industries' latest technological invention at the World's Fair. Rouge the Bat and Topaz were also in the city in search of Dr. Eggman who had been spotted there. Upon the revelation of Thorndykes' shuttle, Eggman summoned several robots in an attempt to take the shuttle for himself, though ultimately failing and fleeing after Big punched him in the face.
With Eggman having escaped into a house of mirrors, he was chased down by his enemies until he used a device to bring park attractions in the area to life in order to fight on his behalf. With this, he was able to buy himself enough time to take the shuttle for himself.
- Paris is based on the real-life city with the same name.