Ana introduces Ezequiel, her new boyfriend, to her parents, in a cabin in the middle of the woods on Christmas Eve. Ezequiel goes into the woods to look for firewood, and when he returns, she notices a change in him that raises questions.

At a summit for Latin American presidents in Chile where the region's geopolitical strategies and alliances are in discussion, Argentine president Hernán Blanco endures political and family drama that will force him to face his own demons.

Martín lives in the Argentine countryside. After suffering a violent robbery at his place by a hooded person who threatened his children, he receives the visit of Guzmán, a man who assures him he's able to find the man who robbed him.

Ignacio has the same dream every night. This dream is destroying everything from the inside of his mind: his job, his romance, his personality, his world. Is it a vision, a sickness, or a simple whim?

Carmen and Elena Iturrioz are sisters and partners in a laboratory inherited from their parents. Both carry out the cases that reach the laboratory, together with a team of collaborators. Each episode will stage a new story that arrives at the laboratory at the hands of characters seeking to find out their identity, recognize a son or a brother, gain access to an inheritance or identify a genetic disease, among others. they will reveal who they are; they will get closer to their own personal and family identity.

X arrives in a small town and witnesses a violent act; Z takes the job of a dead manager and discovers that he had a notebook written in code and a map; H is hired to go down a river and investigate a series of mysterious monoliths built on the shore.