The film tells the true story of a high-ranking Montonero fighter, Edgar Tulio Valenzuela (also known as Tucho). It is a story that contains both a deep moral dilemma and a unique pact of love. It could be summed up as the dilemma of a person forced by fate to decide between remaining loyal to his movement at the cost of sacrificing the beings he loves most; or opting for the survival of the latter, knowing that if he did so he would become the greatest traitor to his fellow members.