Inspired by true and current events In the aftermath of the fall of the Iron Curtain a clandestine far-right German terrorist group called National Socialist Underground or NSU began operating in Germany by killing immigrants in cold blood, termed the Bosphorus Serial Murders. The victims are brutally slayed with the same gun. The police never even consider a right-wing conspiracy - despite evidence to the contrary - and focus on internal ethnic feuds. So while these decent people are dying, the German authorities are heaping scorn on them, accusing them of drug dealing and hinting at loose morals. Hovering above them are three comrades who've been arrested and let go time and time again: Beate, Böhni and Uwe. Beate is amazed by the eloquent Uwe and the way he absorbs the right-wing message; but she is just as impressed by Böhni's tripwire temper and random violence. The three soon form a compact trio that lives together and allegedly plans attacks to restore Germany to the Germans.... Written by Wiedemann and Berg Television

September 2000. 14-year old Semiyas father is murdered. The police assumes that it is Turkish mafia related crime. Nine more killings will follow.

November 4, 2011: After their latest bank robbery, Uwe Böhnhardt and Uwe Mundlos set their camper on fire and allegedly shoot themselves. Inside the camper, the police find their bodies and secure an arsenal of weapons. Then, Beate Zschäpe's apartment is blown up in an explosion. Police investigator Paul Winter is convinced that Zschäpe is hiding close by... In the late 1990s, Winter arrests Zschäpe for the first time. However, Zschäpe as well as her comrades Böhnhardt and Mundlos are let go time and time again. When the police find explosives in their garage, the trio outwit the authorities and go underground. Both Winter and his colleague Ahler become suspicious when Siebert, their superior at the State Office of Criminal Investigation, insists that Zschäpe, Mundlos and Böhnhardt have fled the country. Winter and Ahler pursue their investigations on their own.