Operation "Iona", or invisible angels

Lieutenant Colonel Uvarov and his team was instructed to intercept the smuggling part of the latest explosives, recently taken to St. Petersburg. It is very difficult to detect with standard means, which makes it the perfect tool for the commission of sabotage. The operation ends in failure - the smugglers were killed, and the load disappeared. Traces of criminals lead to the port, where they are preparing to open a Russian ferry navigation, which successfully works in cruise transportation in the Baltic. The task of Uvarov and his group is to win the race over time, because the life of the daughter and the fate of the ferry passengers are at stake. However, the mysterious performer ruthlessly eliminates everyone who can interfere with his plans