"Uncle Rabbit" was accidentally stranded in Wuhan and had no choice but to work as a cleaner in a hospital. He was still optimistic and encouraged those around him under the "test of life and death"; truck driver Lao Yang and post-90s driver Dongzhi grew up together on the long journey of 1,000 kilometers, bringing love and warmth to Wuhan; Doctor Xia, who was "cold and afraid", and his wife Doctor Lu, who "smiled three times and was positive", went to the epidemic area together, showing a different kind of "battlefield husband and wife love"; during the period of common isolation, the mother-in-law and daughter-in-law were on the verge of a war, but the "united front" was also slowly taking shape; medical staff, the People's Liberation Army, and volunteers took the initiative to volunteer and work together to fight the "epidemic", and looked forward to the completion of the Vulcan Mountain Hospital so that critically ill patients could be admitted; in the square cabin hospital, mild patients with their own characteristics formed a "temporary family" that found joy in suffering, and felt different true feelings in adversity; Doctor Wu, who was about to retire, took the initiative to undertake the screening work of the Happy Community, and the novice civil servant Xiao Zou became his partner, and the old and young combination worked together to complete the trivial grassroots work, and the small things in the community conveyed the great love of the world.