In a secondary school, a group of students (Maria, Sonia, Paula, Pol and Esteban) form a tight-knit bunch. Axia, a girl obsessed with supernatural issues, leaving them mesmerized and included in the group. For the 50th anniversary of the center, start some work on improving the facilities. Laura, the tutor of the course offers students a work of the institute history. As they investigate they discover that, during the Civil War, there were tunnels collapsed, leaving people buried who were hiding there, including several children. According to information obtained on the Internet, people are buried "appear" killing. Are the "E.S.O. (Hidden supernatural entities "). When they decide to enter the tunnel adventure turns into a nightmare.

"14 d'abril. Macià contra Companys "is a television drama, allegedly recorded in 1932, but with the methods, style and own means 2010. With this temporary license, the stars of one of the episodes of the Catalan capital twentieth century discussed the facts, in first person, while a nosy camera helps us to relive what happened in Barcelona between 14 and 17 April 1931, the three-day duration of the Catalan Republic. All with the aim of showing the greatness and the precariousness of a gesture, half improvised by Companys key sovereigntist corrected by Macià, and that led to a shouting match.