The cast features Luis Tosar, Michelle Jenner, Vicente Romero, Manolo Solo, Paco Tous, Jaime Lorente, Adriana Torrebejano and Ernesto Alterio.

Detectives Rediú, Tísico, and Beltrán from the local police’s Intelligence Brigade lead the investigation of the robbery, and they are soon joined by agent Aníbal Uriarte, who was sent from Madrid.

The detectives visit the Eden nightclub, where Rediú introduces Uriarte to the club’s owner and local gangster El Barón, who also does business with the corrupt members of the Intelligence Brigade.

Commissioner Verdaguer announces that if the stolen weapons are not found within 72 hours, the military governor General Martínez Anido will send troops into the streets of Barcelona.

Uriarte seeks information from Ortiz, where he befriends his daughter Sara, who following the repression of the women’s march has joined León’s anarchist action brigade.

Uriarte meets with his boss, a government minister, to reveal the results of his investigation: General Anido had his men rob the MZA train, and gave the weapons to El Barón to sell to the anarchists in order to increase violence and justify a military intervention.

The minister believes a civil war sparked by the anarchist clashes and the military disaster in Morocco will be good for him politically, and he orders Uriarte back to Madrid.

At the deal, El Barón lets slip in front of Sara that León killed her father, before the anarchists double cross the gangsters.