Sonic X, Vol. 7: Revenge of the Robot
Out-of-Control Robots! Stolen Chaos Emeralds!  Kidnappings!  Sonic and Eggman on the Same Side!? Just another typical day in Station Square.  Revenge of the Robot finds our heroes in a fight to save Station Square and defeat Gamma and Chaos.  In the end, Knuckles’ mysterious visions about a girl named Tikal provides crucial information that will help Sonic defeat Chaos and the robots…but will it be in time to save Station Square?