On a dark and stormy night in the Mushroom Kingdom, an Island falls... [Beginning of the Chaos Arc.]

Continuing from the events of last episode, Sonic and Tails go on an adventure with Mario and the Gang following for their mission until they come across a certain... Egg. [Part 2 Of The Chaos Arc.]

As the chase to get the emeralds before Eggman continues, Sonic, Tails, Mario, Luigi, SMG4, and Toad all make it into the Casino where two emeralds are presumed to be in there. [Part 3 of the Chaos Arc.]

Mario and the gang have split up into 2 teams of 4 to help Sonic and Big on their missions! Meanwhile, one of Eggman's latest creations: E-102 Gamma goes into training. [Part 4 of the Chaos Arc.]

And so the time begins to tick as Chaos begins to erupt and things begin to fall into place... [Part 5 of the Chaos Arc.]

It's Halloween! OOOOOO! Very Scary! [Part 6 of the Chaos Arc.]

This is our last shot! We must defeat Eggman and Chaos once and for all! [Finale of the Chaos Arc.]