In the beautiful Yushu, the source of the Three Rivers, a grand Jockey Club is being held. Snow-white tents are all over the grassland, colorful flags are flying, ethnic dances are performed by dressed Tibetans, and everyone's face is filled with happy smiles. Dorje had an accident during the horse race and was rescued by Liu Kaiqiang, a young volunteer who came from Beijing to teach. Tibetan men and Beijing volunteers became brothers, and Tibetans and Han people became the sons of a mother.

The dance of Ram Yangjin, the most beautiful girl in Jiegu Town, moved Dorje, and he began to pursue Ram Yangjin, but Ram Yangjin did not accept Dorje's affection. Because he listened to Canaan's words, Dorje misunderstood Ramyangjin and Liu Kaiqiang. After quarreling with Dorje, Ramyangjin galloped on the grassland and got lost in the dark. After receiving a phone call from Ram Yangjin's mother, Mei Duo, Liu Kaiqiang searched for and saved Ram Yangjin. Ram Yangjin was moved by Liu Kaiqiang's story and liked Liu Kaiqiang, but Liu Kaiqiang didn't accept her love, and Dorje alienated Liu Kaiqiang.

on April 14th, 21, an earthquake occurred in Yushu. On the ruins, soldiers, rescue teams and volunteers are carefully searching for survivors. Yang Qingchuan, the mayor of Jiegu Town, quickly organized all forces to carry out rescue, but he didn't have time to take a look at his injured daughter Yang Da Wa. Despite his physical discomfort, Xin Li, a military doctor, still insisted on giving Yang Da Wa much-needed RB blood, which moved Dunzhu in Lausanne. He cooked a pot of Cordyceps soup for Xin Li. A soldier suffered from pulmonary edema due to severe altitude sickness. At the critical moment, a lactating Tibetan woman saved him with her own milk. Xin Li, a military doctor, also contributed his own food to help the wounded, but he was fainted by hunger. Liu Kaiqiang rescued the teachers and students who were crushed under the rubble regardless of the danger, but died when the last student was rescued because of the collapse of the waste wall.

The Tibetan people bid farewell to Liu Kaiqiang, and Xin Li appeared in front of the farewell party with a bright red rose. She told Ram Yangjin sadly that she was Liu Kaiqiang's lover, and the lover who had never seen each other finally saw her last time at this moment.