Pulga is a very, very grumpy flea that lives inside Chico's fur in his huge mansion.His only desire is to be left alone minding his own business, doing all the things that wealthy people do (most of them boring). The only problem is that Chico Chihuahua is sort of his neighbour (he bought a piece of land inside Chico's fur long time ago), and he just wont let him alone with all his silly plans that end up in disaster that most of the time damage Pulga's wellbeing. In order to control the situation, Pulga has a control room with hundreds of cameras that pop out of Chico to see what he is up to. This way Pulga can intervene with many gadgets he has buildt to safeguard his well being... but this  not always work. Fortunateley, there are always some Jalapenos at hand..