Sevilla, Andalucía (southern Spain). The neighborhood of Las 3.000 Viviendas (The 3,000 Homes or "The 3,000" for short) is a ruthless, cruel place where police, law and order have no power. In this underworld of drug and crime, Juan Santos is a con man with supervised freedom who steps out from jail for one day to celebrate with his wife Triana the First Communion of their only daughter Estrella. But during the celebration,, his younger brother Chico and Uncle Andrés appear as uninvited guests to offer Juan a business to take drugs back into the jail. Fearing to lose his prison privileges, Juan refuses, then when the three head back home, another car bangs into theirs, killing Estrella. At the same time, veteran cop Manuel Santacana and younger partner Eli arrive at a murder scene to investigate the killing of four Romanian drug traffickers, finding in it the cops Barroso and his new partner rookie Nando, Manuel's son, being notified about the car crash. Discovering that the car that killed Estrella is the same of the Romanians' killers, Juan meets his mother María, former Santos family mob boss expelled from The 3,000 by rival families Fortuna and Taboa, who helps Juan to avenge her granddaughter's death. Looking for clues, Eli and Manuel question a junkie named Maravilla, noticing the implication of Fortuna family, and start a strong police deployment to catch all them, but boss Gordo Fortuna and one of his sons escape while Juan, Andrés, and Chico are investigate by their own to find the guilty. helped by the neighbors, who point to a junkie named Kempes. However, all changes when Eli finds an unexpected dark relation between the crime with the own Barroso, despite Manuel's opposition by absence of physical evidence. Meanwhile, Triana thinks she's pregnant again, and Juan and his relatives looking for Fortuna family accepting be a drug mule to obtain information, Eli's attempts to know the truth better after he locates the long-time wanted Kempes, who blames Barroso and Nando as the Romanians' killers. But Eli's check of Kempes' cellphone discloses a new, darker implication between a third cop and the Taboa family that forces Eli to run to The 3,000 after she was shot, being saved by chance by Triana and Juan when she almost is killed by junkies. Telling the truth to Juan and Triana, Eli allies with the Santos as the last hope to reveal all, and Juan alerts the family to save them and concoct a revenge plot, in a race against time where there's no guarantee of survival.