Tifanny's science fair project goes horribly wrong when the special solar beam lamp she borrowed from her Aunt Gina mixes its rays with those of a glowing hunk of moon rock Charlotte 'borrowed' from Penny's extraterrestrial geology collection! Before everyone's eyes, Tifanny transforms into something twice her size, twice her speed and completely out of conscious control! She escapes into the mall where the fair is being held, too fast for Charlie, Pojo and Erwin to catch, but for some reason, she keeps stopping to look at price tags. Could her primal were-cheetah shopping instincts be taking over?