Knuckles the Echidna has finally found the Master Emerald, and is doing a good job at being its protector. That was until former workers of Robotnik, the Hooligans, have tried to enact revenge on Knuckles by stealing it. But in their battle, the Master Emerald shattered into seven pieces across Mobius, and Angel Island has fallen into the ocean! Knuckles swam to the nearest piece of land that he could find, Metropolis Zone, where he ran into the Chaotix Detective Agency consisting of Vector the Crocodile, Espio the Chameleon, Charmy Bee, and familiar faces like Mighty the Armadillo, and his aoptive brother Ray.. Together, they journey across Mobius to find the Emerald pieces, stop the Hooligans from getting them first, and restore Angel Island. During this adventure, Knuckles realizes that there's more to the world than meets the eye.
