SBS has conducted an in-depth and close-up coverage of the four seasons and the lives of various peoples in the Siberian tundra region (Yamal, Khanty, Taymyr, Kamchatka), a first in Korea. This is the prelude to a grand 7,000 km journey across the Siberian tundra. In winter, temperatures commonly drop to -50 to -60 degrees Celsius, and in summer, it is the place with the most mosquitoes in the world. What is the strength that has enabled the tundra people to survive in this barren land for thousands of years? The reindeer is the representative animal that has survived in the harsh environment of the tundra, where seven months of the year is winter. The reindeer nomads, who migrate south in winter and north in summer in search of moss, also inherit the robust vitality of the reindeer. However, in the face of unpredictable threats from nature, human life is merely a minuscule part of nature. For the tundra people, who respect the spirit of all living things and revere nature, the tundra is no longer a barren land, but a land of abundance. From the Nenets, the last reindeer nomads of the tundra, to the Khanty, where the world's only bear ritual still remains, and to the shamans as mediators between nature and human beings... The story of the tundra people who guard the frozen land unfolds!