Mary and Mike travel together to Buenos Aires to perpetrate their first attack. The victim: one of the political enemies of Pinochet’s regime.

Orlando Letelier, former minister and ambassador of President Allende, leads the Chilean opposition from Washington D.C. Sarmiento thinks in a hit unprecedented and suicidal: go to the United States and get rid of Letelier. Mike assumes the mission with Monica, leaving Mary out of it.

Letelier's crime has shaken the world and the regime suffers the first tumults of international pressure. Coinciding with the visit of the writer Jorge Luis Borges to the country, the US Attorney Eugene Roberts has traveled to Chile ready to take the murderer of Letelier with him, even without knowing who it is.

While the family celebrates the youngest child's birthday with a pool party at home, a Spanish priest accused of collaborating with the resistance is tortured in the garage of the same house.

Mary receives a prestigious award for one of her stories. Meanwhile, Barrera is preparing a new lethal weapon to be used in Rome against another political adversary. An Italian terrorist visits Chile to perpetrate the next objective.

Two Cuban anti-Castro run away to Chile after committing a wave of attacks and take refuge in Mike's home.