Mighty Trains S01E05 - North Rail Express

Mighty Trains joins the North Rail Express as it travels on Europe's longest continuous freight link. The first forty-two kilometers of this link is the most treacherous. Passing through the mountains between the two countries is never routine. During the long Arctic winters, lack of daylight and limited visibility are big challenges. Once through the mountains, they have to constantly slow down the heavy train on the steep downward section into Kiruna.