"Maaa.... no car-car", says Gordon

My best friend bought Gordon 5 matchbox cars recently. He likes them very much. One day, whilst shopping, Papa bought him another batch of 20 cars and trucks. He now knows how to differentiate them. Car, truck, bus....

I can see that he's happy playing with them everyday. Running them all over the house, over couches, under tables, over my head, Papa's back.... EVERYWHERE!!! Suddenly, they ALL disappeared. ALL!!! I cant find them anywhere. DANG!!!!!!!!