Ibrahim came to Spain from Guinea Conakry and now his roots are in Madrid, where he lives with Mariama and works as a bricklayer. One day, the police arrest him and Ibrahim, who lacks a residence permit, is deported to his country. From that moment on, his only objective will be to return to Spain to reunite with Mariama and her daughter about to be born. After managing to cross Africa, he settles with some companions in Mount Gurugú, an immigrant camp that separates Africa from Europe. There he meets Aminata, a girl determined to jump the fence and reach Spain. But that is a physical feat that is not within everyone's reach.
During an eviction procedure in a troubled area of Madrid, police officer Dani makes a shocking discovery.
Ángela Vidal, the young television reporter who entered the building with the firemen, manages to make it out alive. But what the soldiers don't know is that she carries the seed of the strange infection. She is to be taken to a provisional quarantine facility, a high-security installation where she will have to stay in isolation for several days. An old oil tanker, miles off shore and surrounded by water on all sides, has been especially equipped for the quarantine.