The show is pretty ridiculous. The boys are quickly arrested by Homeland Security, along with the other Peruvian flute bands that are part of "global Peruvian flute band pandemic." But they soon realize that the Peruvian flute bands were the only thing saving the world from giant guinea pigs. They go to Peru to save the world from the giant guinea pigs.
The full episode is here, but below I included just a short clip of the boys in their chullos (woven hats) with their zampollas (flutes):