After a class, two of Cecilia's students are kidnapped by the political police of Augusto Pinochet's regime; the experience changes Cecilia, and she decides to join the armed resistance; there she meets her commander, Rodrigo.

Cecilia adopts her combat alias, Tamara; Ignacio summons her to a more complex mission; Bareta, the agent of the CNI, investigates the attack carried out by Cecilia's group and discovers a clue that leads him to them.

Cecilia is living clandestinely, fleeing from the political police; the front, led by Rodrigo, organizes an operation to rescue a comrade; Rodrigo asks Cecilia to participate in the main mission of the Patriotic Front.

Cecilia returns home after some time; the country is agitated, with people protesting against the dictatorship and the military responds harshly; Cecilia and Ignacio embark on a journey to northern Chile with a new mission.

Cecilia goes to see her family before starting the operation; Bareta progresses in his investigations, endangering the Front's mission; Rodrigo and Ignacio recruit their most loyal soldiers to carry out an attack against the tyrant.

The group of guerrillas, led by Cecilia, Ignacio and Rodrigo, prepares for the attack; Cecilia leads the attack alongside Ignacio; the night before the assassination attempt, Rodrigo makes a decision that affects his relationship with Cecilia.