Knuckles the Echidna after having Angel Island float again and has finally found the Master Emerald, and is doing a good job at being its protector, until he is on a quest with a ragtag group of detectives called the Chaotix include the head detective Vector the Crocodile, ninja Espio the Chameleon, hyperactive and rascally squirt of the group Charmy Bee and two newly members Mighty and Ray and Julie-Su, an echidna girl who is also the newest member to the Chaotix and whom Knuckles fell in love with to discover the history of the echidna clan and an ancient echidna from old times has risen from the past to obtain the six mysterious rings.
