Modern man Wen An time-travels over. His father dies on duty and his family runs out of grain, so he activates the era sign-in system to obtain various supplies. Standing his ground, he helps his younger brother Wen Cheng get a factory quota, applies to the supply and marketing cooperative, and joins it through his sign-in skills. After entering the cooperative, Wen An defuses the leadership's harassment, successfully completes tasks, and is promoted to acting leader of procurement group one. Using the system's supplies to improve his family's life, he meets Li Rongrong and brings his relatives together for a reunion. When pork supplies in the city are cut off, Wen An proactively rushes to Jin Gang, signs in for a large batch of fish and shrimp, and successfully transports them back to Beijing City. With practical achievements, he comes to the fore, protects his family in the tide of the era, and displays his own talents.