A cap peddler wakes from a nap to find all his caps are gone-a bunch of naughty monkeys have taken them up a tree. Angrily shaking his finger at the monkeys, the peddler demands his caps back, but the monkeys only shake their fingers and say "Tsz, tsz, tsz." No matter what the peddler does, the monkeys only imitate him. Finally, the peddler is so enraged he throws his cap on the ground-and all the monkeys follw suit!