 In the first chapter, a spaceship from the planet "Jo" arrives to a small spanish town. There, it breaks, leaving it s ocupants, Yupi and Astrako, stucked in the Earth. They contact the people in the town and become their friends. Following the system that "Barrio Sesamo" had, each episode is mixed with puppets sketches that were basically educational. In the second season, the spaceship is fixed by a robot coming from planet "Jo" and they get away from the Earth, but some friends in the town decide to go with them to see planet "Jo". The spaceship eventually goes broken again and they get stucked in another planet, where they live many adventures. In 1990, Yupi was the host of a program of short chapter were he told us fairy tales. Since then, he s never come back to TV although this character was very popular in Spain at that time.