Biotechnology researcher Su Wanwan accidentally traveled to 1975 and became the widow of a martyr of the Red Star Production Brigade in the northern countryside. Faced with a poor family, a frail and sick young son, little remaining pension, and complex looks from around her that were either sympathetic or prying, she held onto the only support in her hand - a newly activated spiritual spring space. In this era of scarcity, collective supremacy, and caution in every word and deed, Su Wanwan must hide the secret of space. With the knowledge of her previous life, the nourishment of the spiritual spring, and her own hands, she can earn a living and find a way out for her and her son Xiaobao in this strange land. From carefully taking care of the private plot to becoming a "technical expert" on the pig farm; from bartering carefully to leaving her name on the commune radio; from dealing with the covetousness of greedy relatives to dealing with various characters... She is walking on thin ice, but she is taking root step by step. This is a chronicle of survival, protection and growth. It looks at how a modern soul used wisdom and tenacity to water the flowers of hope for ordinary people in the torrent of the 1970s.