《珠江人家》国难当前，陈山河暂时放下家仇，帮助邝庆奎打游击，一起对抗外敌。
陈山河再次回到药坊时，见到了许久未见的邝庆奎，他已经成为抗日行动队队长。邝庆奎来找陈山河是为了药品补给，但他还有一个请求，希望陈山河能帮他将炸药带进日本宪兵报道部的后墙。这样一来，两人之间的恩怨就可以一笔勾销。
当天夜晚，陈山河协助邝庆奎和他的手下潜入宪兵报道部。邝庆奎带领着他的队员展开了疯狂的袭击。第二天，整个街道上传来了报童高喊着关于邝庆奎带领游击队炸日本宪兵报道部的消息。
这次行动不仅加强了邝庆奎和陈山河之间的友谊，也让他们在抗日行动中展现了更大的力量。他们将继续为国家和人民的利益而战斗，直到最后一刻。
《珠江人家》精彩剧情介绍 第18集：日本人欲垄断中国市场
“Better to be a villain in China than a traitor in Japan”: this is the bottom line that Tan Yao Hang holds firm to, and it is also the dignity that invaders cannot trample upon. As a result, Ruan Feizhou directly seized Tan Yao Hang's property and oppressed the people and businessmen in the cultural circle of Guangzhou. Zhang Taiping handled the affairs of Rui Shan after his death, and even in turbulent times, he cannot disband the opera troupe, otherwise those people would have nowhere to go. Chen Yebing reluctantly agreed to take back the opera troupe and merge male and female roles, as long as he didn't perform on stage, it wouldn't be considered breaking the rules. He would be responsible for all the backstage work and could also turn their stories into scripts. Jin Huirong revealed to Chen Lixia that Ruan Feizhou was not an ordinary journalist, nor a regular Japanese soldier, but a member of the Kempeitai reporting department, actually a secret organization tasked with assisting the Japanese in occupying China culturally and mentally. It is because of this that Ruan Feizhou has been actively involved in activities in the Cantonese opera and news industries, forcing people with some reputation to join the traitorous organization and whitewash the so-called peaceful scene in Guangzhou for the invaders. Since Jin Huirong's identity has been exposed, he is likely to face danger, and Ruan Feizhou is sure to find ways to eliminate him. Chen Lixia learned that Jin Huirong had joined the party four years ago, and was shocked and a bit annoyed that Jin Huirong had kept so many secrets from her, thinking that she could handle a lot of things. In the meantime, Chen Shanhe and Song Shilian were planning their next business move at Nanlu Medicine Shop, but Xu Nanlu believed that they should focus on making medicine. Xian Zhongjun, considering that Guangzhou was no longer suitable to stay, planned to move his family to Hong Kong to start anew, arranging for Huang Qiquan to go with them, and entrusting the Guangzhou Restaurant to the right person. Before leaving, Huang Qiquan taught Chen Wei how to control the fire and handed over the restaurant to him for one dollar, hoping that he could manage it well. Chen Wei became a big boss, and while he was excited and happy, he also felt the invisible pressure of having to keep the restaurant going in troubled times and also feed the kitchen staff, which seemed simple but was actually very difficult. However, Chen Shanhe was not optimistic about this situation, as the Japanese had already planned many prosperous districts as commercial areas, prohibiting Chinese people from doing business there, otherwise it would be considered seizing their resources and interests. Chen Wei, on the other hand, was determined to drive away the Japanese invaders. Corporal Gangtian one day came to pick up his friend, Ozawa Kotaro, promising to let him open Japanese-owned restaurants in Guangzhou, full of great ambitions for the future. Originally, Chen Wei intended to find Tan Yao Hang to help him manage the restaurant and work together to promote Cantonese cuisine, only to come across Tan Yao Hang, who was covered in wounds and bruises, in the herbal tea shop. He couldn't believe that Tan Yao Hang, who had once been so prosperous, would now end up destitute like this. In response to Chen Wei's question, Tan Yao Hang revealed that Ruan Feizhou had come to him, asking him to join the traitorous organization, but how could he, a father of an anti-Japanese heroine, become a traitor, even if it meant starving on the streets. Meanwhile, the behavior of the Japanese had become increasingly lawless, openly beating an elderly couple who ran an herbal medicine shop on the street, attracting a crowd of onlookers, who dared to be angry but not speak out. Unable to stand by, Chen Shanhe threw stones at the Japanese in the chaos, causing the Japanese to rage in frustration due to their incompetence. Xu Nanlu, upon learning of this, thought Chen Shanhe was too reckless, and mentioned that the Japanese military had appointed representatives from Japanese medicine shops to govern Sanguo Yaxi (happy trio), who could plunder the Chinese herbal medicine business with the protection of the Japanese army. Chen Shanhe sought out Ruan Feizhou, hoping he could help arrange a meeting with Sanguo Yaxi, but Sanguo Yaxi's attitude was arrogant and ambitious, proclaiming their intention to monopolize the entire Guangzhou medicinal industry. As he was leaving, Chen Shanhe noticed that the son of Sanguo Yaxi was seriously ill, having suffered from a high fever and convulsions a year ago, and now with a chronic illness that needed a pill called Laohuoluo Dan to cure, Xu Nanlu claimed not to know where the medicine was located. Chen Wei tried to convince Tan Yao Hang to give up his literary pursuits and focus on business, and finally Tan Yao Hang agreed to return to the restaurant with Chen Wei, inviting the media from various sectors to witness his declaration to turn over a new leaf and stop his old ways. However, just as they were about to leave, Ruan Feizhou suddenly appeared to stop them.