The Wui Yau Safety Service is very renowned during the mid Qing Dynasty. ,It earns respects from officials, businessmen and triadds across the country. Although it appears to be a strong company, its business is dying. The new head SHEUNG CHI (MA CHUN WAI, STEVEN), decides to reform it.

CHI is the adopted son of the family. His background and aggressive reform cause disputes at Wui Yau. Eventually, he has to split the family with his brothers SHEUNG CHUNG (LAI YIU CHEUNG WAYNE), SHEUNG HAU (WONG CHI YIN), and his uncle SHEUNG CHING PANG (LAU KONG). Luckily, a female escort, LEI CHEUNG FUNG (YIU, ELAINE), at Wui Yau supports him.

Life is never easy. PANG has become an official after he leaves Wui Yau and he tries at all costs to force Wui Yau to close down. Meanwhile , the Qing government decides to build a railway. Freighters can also been seen everywhere, too. Safely Services have very little room to survive. CHI's younger brother, SHEUNG YEE (LAI LOK YI), comes back from studying abroad. He analyses the situation and suggests CHI shifting the family business from land logistics service to shipping. They work hard hand in hand. Finally, they are granted a shipping patent from the government. Wui Yau's flag, which was once seen everywhere on the road, is now flaunting in the sea.

会友镖局在清同治年间极负盛名，官、商、贼三道无不留下面子三分。然而镖局其实外强中干，新任大掌柜尚智(马浚伟)决定来一场改革。

智义子的身分和他大刀阔斧的改革却令他成镖局上下的箭靶，他最后更要跟兄弟尚忠(黎耀祥)、尚孝(黄贤智)和大伯尚正鹏(刘江)等分家。犹幸，局内的女镖师利祥凤(姚子羚)一直在旁支持。

一波未平，一波又起。一方面，镖局被当了官的鹏逼得几乎要倒闭。另方面，清政府筹备兴建铁路，大货轮亦开进港口，镖局行业正日落西山。智留学回来的四弟尚 义(黎诺懿)看清时势，鼓励智发展漕运。兄弟俩为镖局尽心尽力，终获朝廷颁发漕运的专利。昔日在陆路上随处可见的会友镖局旗帜，今日继续在海上迎风飘扬。