Fitter Hu Jianlin (played by Dapeng) was transferred to the headquarters by mistake when the group was laying off employees. Human resources manager Ma Jie (played by Bai Ke) was forced to conceal the incident in order to keep his job. From "factory" to "big factory", from "blue collar" to "gold collar", Hu Jianlin was incompatible with the big factory environment and made a lot of jokes. It was also like a "workplace magic mirror" that showed all kinds of people in the workplace... Why was Hu Jianlin able to get promoted and get a raise all the way to dominate the big factory during layoffs? Can Ma Jie get away with the "wrong transfer" incident? What kind of shocking melon is hidden behind this outrageous "wrong transfer"...