Informant - Angst über der Stadt.

Terrorist El Adoua is killed during a raid in Italy. He had previously stayed in Hamburg several times. Gabriel Bach, anti-terror investigator from the Hamburg State Criminal Police Office, and his colleague Holly Valentin from the Federal Criminal Police Office are supposed to find out whether El Adoua was planning an attack there. Could the upcoming concert in the Elbphilharmonie be the goal?