1986: Naranjo, a young Colombian police captain, vows revenge after his friend and mentor, Sgt. Cuevas, is killed in a robbery orchestrated by Liso, a dangerous car thief on the payroll for Colombia's most powerful drug trafficker: Pablo Escobar.
1980: Naranjo and Talero seek to avenge Cuevas' death by tracking down Liso and his shooters. Claudia tries to assure her parents about Naranjo's character. Escobar and Gacha, meanwhile, bring into motion their plan to get rid of Orlando.
1980: Naranjo struggles to control his desire for revenge and to protect his cover. Meanwhile, Liso's sloppy work comes back to him in the form of a beatdown from his boss. Also, Escobar lays out his plan to enter politics.
1981: Liso takes advantage of his presumed death to continue his life of crime in anonymity, and sets out to help Escobar advance his political career. Meanwhile, colonel Luque, Naranjo's father-in-law, gets to know the real Naranjo.
1981. Claudia finds out what really went down regarding Naranjo's supposed infidelity with Zaida and they resume their engagement. The MAS movement is born, terrorizing the entire society with killings and kidnappings.
Managing a fast track in politics, Escobar lands a governmental seat. After marrying Claudia, Naranjo starts his DEA courses where he meets agent Rita Cienfuegos. The G-31 meets with the president to ask for guarantees during the Peace Talks. The mutual interest between Talero and Esperanza is discovered.
1984. Naranjo infiltrates inside Tranquilandia, exposing the largest cocaine production lab to his superiors and the government. Escobar and Gacha plan to take measures against all the politicians who are pressing down on them.
1984. A wave of violence unleashes; there's an attack against Minister Lara who is killed and El Liso, on his own, tries to kill Naranjo at his house. The war against the cartels escalates, Ochoa and Abadía are arrested. Naranjo exposes DEA agent White on his romance with Wendy, who is Escobar's informant.
Larry Bean, a DEA informant, sets a trap to Escobar and Gustavo Gaviria to link them with drug trafficking. But the plan is discovered by Escobar who will seek revenge. Rita Cienfuegos and Naranjo try to save Larry. Escobar declares war on the Magistrates.
Naranjo is chosen to reinforce the Palace of Justice security after the wave of violent attacks against judges and Magistrates. Gustavo threatens El Liso since he distrusts his way of doing things. Talero leaves to Medellin searching for answers about Escobar and risking his life. Escobar joins the G-31 to perpetuate the attempt on the Palace of Justice.
1985. El Liso does research on the Palace of Justice to plan the attempt, at the same time he warns Colonel Sepúlveda about it, in order to accomplish his responsibility of attacking the Magistrates and exposing the G-31 as the responsible ones for the tragedy. Naranjo warns Reyes Echandía of the imminent danger the institution is in.
Naranjo is invited to the US Embassy, where he ask the Ambassadress to help his government in the fight against drug trafficking. White seeds doubts on Claudia about the possible relationship between Rita and Naranjo. El Liso manages to destroy the evidence that could potentially incriminate him in the attempt.
1985. One of the biggest tragedies in the history of Colombia takes place, the Palace of Justice siege at the hands of the G-31, which gets out of hand during the confrontation between the insurgents and the military forces. Naranjo recognizes El Liso as one of the attackers. Talero is shot by the G-31 and Claudia starts going into labor accompanied by Esperanza.