Eggman released a thing called the Metal Virus. It's a liquid that turns anything organic into metal. Mobians who are infected turn into Zombots. That only spread the virus more. Tangle the Lemur, Shadow the Hedgehog, Charmy Bee, Vector the Crocodile and others have been infected. Sonic is also infected but he has to keep running to slow the infection down. Lanolin the Sheep has been worried and tries to keep calm but this is really getting out of hand.

Lanolin the Sheep: "We're losing people too quickly. We're losing ground. We need to stick together. From now on."