...As a result of a cunning multi-step combination by thief in law Rebus, St. Petersburg businessman Igor Ladonin finds himself in a pre-trial detention center. To save their comrade, former members of the surveillance crew get together again. Very soon it turns out that, in addition to their sworn enemy, they are also opposed by a corrupt police officer from the Central Internal Affairs Directorate, a mysterious Specialist and two daring criminals who stole a unique artifact from the main museum of the country. Read the long-awaited final part of the “External Surveillance” trilogy!