Zhan Lang is an optimistic and upright male wolf who can play the harmonica and pole dance. He accidentally adopted the cub Baolang.
In order to return the five hares he owed to Tower Wolf, Zhanlang fell into a dry well while hunting and did not escape until five days later. Zhan Lang and Bao Lang, who were about to die of hunger, met the shepherd girl Chun Meng'er. The kind-hearted Chun Meng'er gave them steamed buns to eat and kept them alive.
Show the wolf how to repay your kindness. When Ta Lang attacked the village at night, he asked Ta Lang not to pick up Chun Meng'er's sheep. The villagers mistakenly thought that Zhan Lang was the tower wolf that had a wolf in its mouth. When they learned that Chun Meng'er and Zhan Lang had become friends, they forced Chun Meng'er to poison him with ham sausage.
Chun Meng'er really couldn't do it. Unexpectedly, the ham sausage he brought with him was picked up by Zhan Lang. Not knowing the inside story, Zhan Lang gave the ham sausage to Ta Lang, but Ta Lang's son was poisoned to death. Ta Lang vowed to kill Zhan Lang and Chun Meng'er to avenge his son.
Chun Meng'er encounters magic silk by chance. Magic silk has magical power and can change what she wants. But the magic silk flew away. In order to transform the sheep and return them to the villagers, Chun Meng'er wants to retrieve the magic silk. Unexpectedly, the traffickers caught her and wanted to sell her to the city. The trafficker learned that there was magic silk and agreed to exchange it for Chun Meng'er. After discovering that the magic silk had been picked up by a woman heading to Hangzhou, the trafficker took Chun Meng'er to Hangzhou.
Zhan Lang learned that Chun Meng'er had run away from home and was determined to find her back in return for saving his life.
But Zhanlang was captured by Talang. After a battle of wits and courage, he finally escaped. By the railway, Zhan Lang discovered that Chun Meng'er was on the train bound for Hangzhou, so he headed to Hangzhou without looking back.