A couple of retired teachers transform an unused school bus into a mobile home. With the help of a few telescopes, a pension, and a heartfelt dream, they begin their journey to the most isolated parts of Mexico to teach a little astronomy to the public schools across the country for free.
Augusto, a university professor, finds his wife with another man, so he shoots himself with a pistol in front of them. He survives in quadriplegia, without being able to speak or move.
