German-Syrian Nidal Kouba and his comrades-in-arms risk their lives. Their goal: to locate suspected terrorists among the Syrian civil war refugees in Germany. They hand over their research to the law enforcement authorities so that the possible perpetrators can be caught. The investigators listen to them, but the police and public prosecutor's office are hesitant ... Finding suspected terrorists among the Syrian civil war refugees in Europe and reporting them to the authorities - German-Syrian Nidal Kouba and his comrades-in-arms risk their lives for this self-appointed mission. Nidal fled Syria with his parents in 1985 and the family was granted asylum in Germany. He grows up in Germany, is well integrated, a successful businessman with a family. Nevertheless, he leaves everything behind and goes to Syria when the Arab Spring begins there with peaceful protests against the dictator Assad.