Young Mancang passes out during begging and he is saved by Jiang, and becomes good friends with him. Later they get to know Xia Defa who is helpful and likes to right the wrongs. Three young men establish a business named Deyouju and embark on a journey in business world. They always stand together in times of hardship. In political and social turbulence, three men have gone through business division and conflicts. But they eventually let bygones be bygones and reunite as one to deal Japanese businessmen a heavy blow under the important backdrop of national destiny. The war against Japanese aggression breaks out, and three brothers need to set out on their own journeys once again.