Murmansk, a Russian port located near the Arctic Circle. Murmansk was a key military port of the entire Soviet nuclear submarine fleet. Today, only tons of dangerous radioactive material remain - like a ticking time bomb, threatening the North Sea environment, but also the whole globe. A team of German scientists has taken on a monumental task: to safely store 200 nuclear submarines and icebreakers so that they do not endanger our environment. The document captures step by step all the steps that experts have to take to fulfill this challenging task ...