Charlotte's dreams have come true: The class field trip is going to be to a famous gourmet peanut candy factory! But even before the trip starts, her peanut addiction gets her AND Tifanny in trouble! The stress of watching over Charlie triggers something in Tif's genes, and she transforms into something twice her size, twice her speed and completely out of conscious control! She recovers, but she still has to "babysit" Charlie during the trip itself. Can she control her best friend and the raging spirit that dwells within her?