1920during the summer of 2019, four counties including wenling in zhejiang province were flooded. bbb。 in that kind of disaster-stricken world, some people want to make money from disasters and some people want to survive. yanzhi is a kind female locksmith. in order to survive, she fled to suzhou with her adoptive father. yanzhi is skillful and skillful, with the characteristics of a city girl's strength, cleverness, diligence and honesty, and has a good skill in lock repair and unlocking. yanzhi believes that she will live a life of food and clothing with her adoptive father in suzhou. unexpectedly, tian yanzhi was framed and sentenced to shooting in 36 days. yanzhi was shot unconscious when she escaped. when she woke up, she found herself lying in the room of a wealthy family in the north. yanzhi was full of doubts. after investigation, she found out that her own sister colluded with foreigners to transport the ore from the town overseas for profit, and she wanted to use her as a substitute. yanzhi accepted a lot of knowledge and ideas about marxism from the progressive young qian zhongjie. she believed that these ores were resources of small towns and countries and must not be plundered by outsiders. in the end, yanzhi convinced her sister to turn back and forth, and they contributed to protecting the town’s resources.