This short documentary features Lluís Rivera, director of In Extremis, a leading company in practical special effects and action props. Based in Barberà del Vallès, they have worked on acclaimed films such as El 47, Anacleto: Agente Secreto, and Superlópez, earning multiple Goya Awards. Rivera shares the company's history and breaks down how they created one of the main action sequences for Anacleto.