Naomi Wilkinson heads to the frozen forests of northern Finland to seek out more nightmares of nature. She takes the plunge into a frozen river to experience the chilling life of a tungsten-tough little bird, the dipper. She also takes a ride with a pack of seriously stinky huskies who like to go in the snow, and goes eyeball to eyeball with a snow-smashing giant of the arctic, the great grey owl. And her survival skills are tested to the limit on a sleepover in the snow.