"ENEMY ME"

ZIM creates a clone of himself in order to double 
the amount of conquering he can do in a day.  
But ZIM's clone is just as paranoid as ZIM 
himself, and he soon begins to suspect that he is 
up to something.  In the end, ZIM and his clone 
both resort to asking Dib for his help in defeating 
themselves.  Dib, of course, thinks ZIM is up to 
something and secretly tries to thwart ZIM's plans 
to destroy ZIM.