Nachdem Todd, der kleine Bruder von Matt, den großen Preis von Karlsville gewonnen hat, will Karl Todd zu einem Bürger von Karlsville machen. Todd erfährt von "König Karl", dass alle Menschen in Karlsville Plastikfiguren seien und nur gelegentlich lebendig werden. Todd wird auf der Bahre festgeschnallt.... Jessica und Matt kommen darauf, dass Todd in der Spielzeugstadt steckt- der einzige Weg, ihn zu retten, besteht darin, dass die beiden sich freiwillig nochmal nach Karlsville begeben und zu versuchen, Todd zu befreien...
After Matthew narrowly escaped from Karlsville, Todd walked to Matthew's room, obsessed with winning some kind of contest. With him, he carried an envelope that said he was the grand prize winner. And that he should come to Karlsville to claim his prize. So, while wondering what Karlsville was, Todd was accidently sucked into the town himself, and the population sign went from ""100"" to ""101"". Todd was greeted by Karl, and the town. They celebrated, and Matthew and Jessica came into the town themselves. While they were looking for Todd, Todd himself was brought to claim his prize. However, Todd's prize is pretty scary. Scary enough to make him a citizen of Karlsville. Permanantly...
Todd, le petit frère de Matthew, se retrouve à son tour aspiré dans la maquette.
Gli amici di Todd cercano di salvarlo da Karlsville prima che venga trasformato definitivamente in una statuina di plastica.
Tercera y última parte de la serie Niñología, en donde Matthew y Jessica deberán transportarse nuevamente a la maqueta de Karlsville para salvar al hermano menor de Matthew, Todd, antes de que sea plastificado.
