[1] The series is set in the fields of Chilean Patagonia in the 1930s and runs through different narrative arcs in the social context of the time, in which women recently have labor and political rights.

[2][3] It stars Catalina Saavedra, Amalia Kassai, and Alejandro Sieveking, the secondary performance of Tiago Correa, Alessandra Guerzoni, Ernesto Meléndez, Daniela Lhorente, Hernán Contreras, Geraldine Neary, among other actors.

The story of Helga Gunkel (Amalia Kassai) and Flora Gutiérrez (Catalina Saavedra), the first women of the Chilean tax police.

Both are sent on their first mission: to travel to Kerren, a ranch on the Isla Grande de Tierra del Fuego, in order to investigate the theft of Sigfried, a fine-blooded horse owned by Don Raymond Gamper (Alejandro Sieveking), a powerful rancher of German origin, owner of everything and everyone, and about whom the Government of Chile suspects that it may be helping Nazi Germany.

This apparent simple case hides a criminal who has returned to the town for revenge, initiating a series of other crimes that the people prefer to ignore but for our investigators it is transformed into a mysterious puzzle of intrigues that must be solved at the risk of losing their own lives.