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.]