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Thanks to the cold climate, frozen rivers can withstand a weight of more than 100 tons, which means trucks can drive along these rivers and conduct trade. However, this is an extremely dangerous job-on these hundreds of kilometers of winter roads, there are no police, no ambulances, no repair shops, no telephone signals, and no human civilization.

In the spring, the roads near the road closure date are the most dangerous. The warm temperature means that the road is gradually disintegrating. Drivers passing by will chat and exchange road conditions through the car radio. The cold day and night temperature difference requires drivers to keep their engines running for 24 hours.

Cracks in the ice, sudden snowstorms, mechanical failures of vehicles, and any accident may mean the death of the driver.

The wreckage of trucks must be disposed of before the ice completely melts, and trucks that can tow large trailers are rare. Dealing with the aftermath of a colleague who talked to her a few days ago-even though she was mentally prepared, the first on-site treatment still brought her a lot of impact. Vivica's father was also an auto soldier until the war ten years ago.