Sergei met two wolves and their four cubs when he was grazing for the first time. After some hesitation, he gave up hunting them and gradually became familiar with wolves without telling his father and other herders. It can be said that he grew up watching the bear. When winter comes, herders drive reindeer back to the deer pen and start hunting. Sergei couldn't bear it, so he went to drive them away together. During this period, wolves attacked the deer pen, and herders wanted to hunt wolves. Sergei asked for another chance to drive the sleigh alone, but he was attacked by wolves and killed one of the wolves. Because he didn't come back for a long time, his father was worried that he would find out the secret between him and the wolves, but he didn't disclose it. Sergei chased the wolves to a lake. A wolf accidentally fell into the water while crossing the ice on the lake. Sergei ventured to rescue it. Wolves have deeper feelings for him. Sergei took the wolves to a valley and left. At the end of winter, the snowstorm came and the wolves attacked. Herdsmen killed six wolves together and found that they were not Sergei's favorite wolves.
At the end of the story, Boris dictated that wolves are not enemies unless they attack deer, but wolves will always be wolves, not friends, dogs are friends, shepherds and wolves share mountains, and this is harmony.