In 2010, the National Space Administration selected a Hong Kong scientific research team as a partner. Professor Yu Jie is the helmsman of the team. He will develop a "camera pointing system" for the lunar mission. In the same year, graduate student Zhang Ning joined. She and several partners have a dream of space travel. Under the leadership of Yu Jie, they successfully added the name of the Hong Kong team to Chang'e 3 and 4. Reality and dreams are always in tug-of-war. Zhang Ning watched the team members leave the team one by one due to various problems. Zhang Ning had the idea of giving up. Fortunately, Yu Jie encouraged her to regain her fighting spirit... In 2020, the team developed a "surface sampling and primary packaging system" for Chang'e 5. On the night of the rocket launch, the partners who left also came back to witness the historical moment with Yu Jie and Zhang Ning...