Airport Zurich-Kloten. Johann Lenders' vocation becomes his fate: When the the airguidecontroller is alone on duty on the first of July 2002, a Russian passenger airplane of the Bashkirian Airlines crashes with a cargo plane of the courier DHL at Überlingen (Germany). All 71 passengers – most of them children and adolescents – die in this tragic accident. Yuri Balkajew, an Ossete, loses his entire family: His wife, his four-year old daughter and his eightyear old son are among the victims. Balkajew pursues those in charge, but he never receives an official apology. More than one year after the accident, he kills the air traffic-controller in front of his family. Hope persists in the form of little Kolja, an orphan who lost his mother - a Russian flight attendant - in the accident.