Two escaped prisoners, who fled Lleida prison in October 2001 with a plan months in the making, managed to activate all state security forces and keep the population on high alert. The Mossos d'Esquadra, a newly formed police force, faced criticism from other institutions questioning their inexperience. The criticism intensified as the escape became more complicated, and the strain and frustration began to take their toll on everyone involved. In their exhaustive investigation, the police uncovered the unusual relationship that developed between Prieto, an unscrupulous criminal, and Calatrava, an addicted, sensitive, and educated offender, whom he ended up protecting in prison from others and even from himself. The escape story delves into the web of admiration and dependence that had formed between them. Their relationship was so intense and passionate that it led to an unexpected outcome.

The fugitives have been on the run all night and are exhausted, but Prieto insists on reaching Porquerisses, a tool shed belonging to his family where they have hidden supplies. Pau, the Brigade Chief, gathers his team to coordinate the search for the escapees and the tracking of their families. Thanks to the prison social worker, he learns that the inmates are betting on the fugitives' fate, but also that Calatrava attempted suicide and that Prieto saved him; not only from death.

On Wednesday, October 17th, the fourth day of their escape, the Mossos d'Esquadra (Catalan police) located the dead boar. Ballistics analysis confirmed that the weapon used belonged to the wounded officer, and the location where they found it led them to deduce that the fugitives had evaded Operation Cage and might be approaching Barcelona. Prieto's ex-wife called Julián, her former brother-in-law, convinced that he and Olmedo knew their hiding place. What she didn't know was that the Mossos had tapped her phone and found a lead.