The newly elected president, Adolfo Suárez, needs the 531 representatives of the Francoist Cortes to approve a law that would dissolve them, and to achieve this he seeks help from the head of the intelligence services, military officer Andrés Cassinello. Cassinello and his men will use every possible means to persuade the “irreducibles” of the Bunker: confidential dossiers, coercion, and a tempting lure that is hard to refuse: generous per diems and a work trip to the Caribbean. Voladura 76 uncovers the secret operation that made the arrival of democracy possible. The film draws on never-before-seen secret documents and valuable testimonies to reveal this political plot with a touch of Berlanga-style satire. From now on, the myth of the Spanish Transition cannot be discussed without taking this secret operation into account.