This episode, "La Carta," outlines the lesson format and story plot that will be followed in the series. The narrator explains the three types of Spanish that will be spoken in the series: conversational Spanish by native speakers (informal, colloquial), the Spanish spoken by the narrator (formal, non-native speaker), and the Spanish spoken by the principal character Raquel (formal, native speaker). The story of the Castillo family,which uses a telenovela format to teach conversational Spanish and Spanish and Latin American culture, begins. Fernando the patriarch of the Castillo family is old and quite ill. He summons his immediate family, which lives all over the world, to his hacienda in Mexico where he plans to make an important announcemen t.