This atmospheric piece is set in Seville, Andalucía in the four years leading up to the 1992 Universal Exposition of Seville. It dramatizes the social changes experienced by the city in a major "before" and "after" the World Expo, honing in on the process of cleaning up the city, eliminating the drug dealing from the streets in preparation for the World Expo, from the point of view of four (and particularly two) police officers comprising the (fictitious) Unit 7, renowned for their exaggeratedly elevated drug bust rate.