Wang Chong is an informal member of a foreign trade association in Shenzhen. The Italian boy Anthony is his client. Anthony is a love brain. He ordered a batch of adaptive solar lights from Wang Chong and wanted to give them to his girlfriend Adele, who was in Bangladesh to assist the victims within five days. Anthony wanted to propose to Adele, whom he had been in love with for six years. Adele was busy with work and couldn't leave, and the disaster area was in urgent need of 5,000 solar lights, so Anthony found Wang Chong.

Wang Chong felt that this was an impossible order, so he rejected Anthony on the spot. Anthony was very disappointed. Wang Chong suddenly came up with a good idea. He brought Anthony to find the grandson of an old Chinese medicine doctor. He was a computer prodigy. Wang Chong explained his purpose and asked the prodigy to help design energy-saving lamps. The prodigy refused on the spot and persuaded Anthony to ask his grandfather to prescribe the traditional Chinese medicine that would defeat the fire.

Wang Chong went to Anthony to find recycling king Ouyang Fa. Ouyang Fa had just prepared to send a batch of photovoltaic panels and lithium phosphate batteries abroad. Wang Chong and Ouyang Fa bargained, but finally returned without success. Then, Wang Chong took Anthony to find Steven, the owner of the lighting factory, to borrow 75 workers and production lines. Steven was moved by the love story of Anthony and Adele, but there were many orders in the factory and he could not spare so many workers.

Just when Wang Chong and Anthony were at a loss, Ouyang Fa, Steven and the computer prodigy arrived together. After careful calculation, the prodigy designed a 40“ energy-saving lamp. Ouyang Fa promised to sell photovoltaic panels and batteries to Wang Chong at a 50” discount. Steven contributed two production lines to produce solar lights. Wang Chong and Anthony were ecstatic and they immediately put into production.After everyone's concerted efforts, 5,000 solar lanterns were finally completed, leaving only the final assembly part. They celebrated together and couldn't help but sing a song.

There was a sudden flood in Bangladesh. Wang Chong called on the workers to work overtime to assemble the solar lanterns and strive to send the solar lanterns to Bangladesh as soon as possible so that the children there could see this beam of light as soon as possible.After hearing the news, citizens came to help and sent the solar lights to Bangladesh on time.Anthony decided to go to Bangladesh to propose to Adele. Before leaving, he came to say goodbye to Wang Chong. Unexpectedly, Adele came back from Bangladesh. Anthony was so excited that he couldn't help but kiss Adele passionately.Adele was going to Africa to serve as a volunteer. Before she left, she wanted to confirm her relationship with Anthony. Wang Chong immediately called a friend to send him an engagement ring.