Codename: Kids Next Door
Operation: K.I.S.S.
E12 Nov 7, 2003 22m TV-Y7
It is a clear case of Dr. Jekyll and Mr. Hyde when Numbuh 2's attempt to create a formula to strengthen hamsters causes him to transform into a teenager and back! Thrown out of the treehouse by his unknowing teamates, he seemingly finds solace when he runs into Numbuh 5's evil sister Cree, and she develops a crush on him!
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Cast of Operation: K.I.S.S.