After long service in the army of the all-powerful Intergalactic Company, Major Yanaba Maddock, demobilized due to disability, finds herself on Surs, “a planet with harsh living conditions.” With such frosts, which rage on Sursa for most of the year, almost no equipment can work and the life of the planet’s inhabitants is extremely primitive. However, in reality this seemingly simple planet turns out to be full of secrets. Deposits of valuable minerals are discovered on Sursa, but all the Company's expeditions go missing. Why do people disappear? What is going on on this harsh and mysterious planet? Yana must find out...