Jimmy Neutron Boy Genius has gotten himself in a completely new world of trouble, or should we say "new dimension of trouble? " In The Adventures of Jimmy Neutron, Boy Genius: Jimmy Neutron Vs Jimmy Negatron, Jimmy accidentally warps himself into a parallel dimension, switching places with his evil alter ego -- Jimmy Negatron! With Jimmy Negatron running loose in Retroville, Jimmy Neutron will need all of his inventions and smarts to figure a way back home, save his friends, and restore his town back to normal!