A murderer hopes to escape his death sentence by identifying the leaders of a spy ring.

Until 1992, Russia disposed of radioactive wastewater, radioactive waste and explosive nuclear waste in the Arctic Sea. And the ailing Northern Fleet was sunk here along with a no longer usable nuclear submarine. To this day it lies rusting on the bottom of the Arctic next to two other boats that have sunk in accidents, together with dangerous radioactive nuclear weapons. They form an atomic time bomb, even if official Russian authorities stubbornly deny an acute danger.