Zhang Zhaoyuan was ordered to come all the way from Shenzhen to Xizang to sell yak insurance. He tried his best to persuade the herdsmen to participate in the insurance, and they were unmoved.Zhang Zhaoyuan wants to put ear tags on young yaks. Ear tags on yaks not only facilitate management, but also allow the yak's physical condition to be known at any time.

Grandma Zhuoma firmly refused, and Zhang Zhaoyuan's talk was of no avail. He took out a photo of his daughter Niuniu and showed it to Grandma Zhuoma, and promised on the spot that he would take care of Niu Niu as he loved his daughter. Grandma Zhuo Ma was deeply moved by Zhang Zhaoyuan's sincerity and agreed with him to give Niu Niu an ear tag.

That night, the herdsmen sang and danced around the bonfire, and Zhang Zhaoyuan sat aside to sort out the data. Grandma Zhuoma gave Zhang Zhaoyuan a leather robe to keep warm, and invited him to join the herdsmen for a party. Zhang Zhaoyuan put on the leather robe and felt warm in his heart.His wife, who was far away in Shenzhen, had a video connection with Zhang Zhaoyuan, and the two confided in each other about their lovesickness over the phone.

A big earthquake suddenly occurred in the pastoral area, and the yaks ran away in fear. Zhang Zhaoyuan did not bother to hang up the phone, so he went to chase the yaks with the herdsmen. Zhang Zhaoyuan and the herdsmen worked all night, but six yaks were still missing. Zhang Zhaoyuan immediately uploaded the claim application to the insured herdsmen.

Grandma Zhuoma couldn't find the yaks everywhere, so she came to Zhang Zhaoyuan for help. Zhang Zhaoyuan accompanied the herdsmen to search without saying a word. After their unremitting efforts, they finally found four yaks, but there was still no whereabouts of the yaks. Zhang Zhaoyuan continued to search along the route of the yaks grazing, and found a large pile of cow dung on the ground. He called Lao Mou, who asked him to touch it with his hands. Zhang Zhaoyuan bit the bullet and touched the cow dung, which was still warm.

Zhang Zhaoyuan just wanted to ride a motorcycle to continue searching, but the motorcycle ran out of gas, so he had to walk. Zhang Zhaoyuan walked until dark and finally found Niu Niu. He cheered happily, but Niu Niu lay on the ground groaning in pain. Zhang Zhaoyuan found out that its leg was injured and immediately called Haza. Haza drove to pick up Zhang Zhaoyuan and Niu Niu without saying anything. Grandma Zhuoma asked him to bring dry food to Zhang Zhaoyuan.

As night fell and the sky was filled with stars, Zhang Zhaoyuan lit a fire. He couldn't help but think of his daughter Niu Niu, who was far away in Shenzhen. He missed the video connection with Niu Niu in order to find Niu Niu. Zhang Zhaoyuan felt bad. Niu Niu seemed to understand Zhang Zhaoyuan's words and looked at him apologetically.

It started to rain heavily and the car ran aground halfway. Lao Mou asked Haza to use a drone to search for Zhang Zhaoyuan's location, and he returned to the pastoral area to ask for support.The heavy rain extinguished the fire, and Zhang Zhaoyuan fell asleep in a daze, holding Niu Niu tightly in his arms. Zhang Zhaoyuan dreamed of a pack of wolves approaching them quietly. Niu Niu pushed Zhang Zhaoyuan awake. Zhang Zhaoyuan lit a torch to demonstrate to the wolves. He vowed to protect Niu Niu to the death. The wolves rushed up to attack Zhang Zhaoyuan. Zhang Zhaoyuan resisted desperately, and the wolves surrounded Zhang Zhaoyuan.Haza found Zhang Zhaoyuan's location through the drone. He called Zhang Zhaoyuan loudly. Zhang Zhaoyuan finally woke up and waved to Haza.

A month later, Zhang Zhaoyuan fulfilled his promise and insured all 100,000 yaks in Tibetan pastoral areas.Zhang Zhaoyuan and his daughter Niu Niu had a video connection. His wife found that Zhang Zhaoyuan was dark and thin, which made her feel distressed. Zhang Zhaoyuan asked Niu Niu to experience the happy life of the herdsmen through video.