Gabriela, Manuel and Leonardo are three friends who accidentally start a rocket that takes them to space. Their journey through space takes them to different planets and strange worlds. Throughout their journey, they have the help of Maqui, an on-board computer. Maqui helps them learn about the universe. The friends experience a very beautiful phenomenon known as a star cluster. Maqui tells them that it is an accumulation of stars that holds together as a family. They try to watch it with a telescope, but the telescope gets loose from the spaceship and lands in a planet close by. Their plan is to recover it during the night so they are not seen, but soon they discover that the star cluster prevents the sky from getting dark.