成青风表面上是一位戆直跌打医师，但遇到不平事，即以龙影侠身份逞凶除恶。为了寻访阔别多年的侄儿傅家宝，青风与其师弟兼助手重返故乡。叔侄二人相遇却不相识，青风眼见家宝被养父宠坏，遂留下管教之。

留学回国的叶芷君一直仰慕龙影侠。她女扮男装侦查龙影侠的身份，期间，结识了家宝，误以为他是龙影侠。家宝趁机戏弄她，二人顿成欢喜冤家。及后，芷君发现家宝并非龙影侠，竟布局自我绑架，迫龙影侠现身相救，最后在紧急关头，芷君终揭开青风的秘密…

青风之兄长朗日忽以慈善家姿态出现，暗里却偷运火药原料往日本，青风只得出手惩诫之。朗日屡次陷害龙影侠，最终，青风身份最终败露，并中了埋伏，生命危在旦夕…家宝惊闻朗日乃其亲父，痛心之馀，决身入虎穴，替青风觅解药，赫然发现朗日助日本侵华之阴谋…[

成青風幼年父母雙亡，跟隨兄長成朗日過活，一次目睹朗日為避仇家，寧捨妻兒性命不顧，十分震驚，幸及時救回姪兒家寶。青風從此與兄長失去聯絡，後在一落鄉班謀生，見班主傳丙善良可靠，便將家寶暗中交託撫養，自己則獨自流落江湖。

十八年後，青風輾轉學得一身絕技，平時以戇直跌打醫師姿態出現，實則是傳說中警惡懲的龍影俠。師傅死後，師兄宗心一直跟隨照顧。一次，為了重訪傳丙與家寶，青風來到一個叫「國庫城」的地方，路上聞得該城有一土皇帝尤萬金恃勢凌人，遂更加強青風訪「國庫城」之決心。

由於傳丙一妻兩妾也膝下猶虛，遂視家寶如己出，極為溺愛，養成其佻皮頑劣之性格。家寶不知傳丙是養父，視其為親父。青風不欲家寶知有卑鄙父親，遂隱藏親叔父身份，做盡一切搏取傳丙之信任，成為家寶之監護人，導其向善。然家寶不喜管束，終日欲擺脫青風，求崇拜已久之龍影俠對付青風，青風只落得徒勞無功。

土皇帝尤萬金惡行頻頻，龍影俠亦屢次現身拯救市民，引起城中廣泛談論。留洋歸來之新聞系女畢業生童芷君天生好奇，以訪尋龍影俠做訪問為第一要務。初時，芷君因誤會家寶為龍影俠，二人相識。家寶與其小舅父賈偉大常聯手戲弄芷君，鬧出不少笑話，然偉大卻暗暗戀上芷君而不自知。

成青風幼年父母雙亡，跟隨兄長成朗日過活，一次目睹朗日為避仇家，寧捨妻兒性命不顧，十分震驚，幸及時救回姪兒家寶。青風從此與兄長失去聯絡，後在一落鄉班謀生，見班主傳丙善良可靠，便將家寶暗中交託撫養，自己則獨自流落江湖。

十八年後，青風輾轉學得一身絕技，平時以戇直跌打醫師姿態出現，實則是傳說中警惡懲的龍影俠。師傅死後，師兄宗心一直跟隨照顧。一次，為了重訪傳丙與家寶，青風來到一個叫「國庫城」的地方，路上聞得該城有一土皇帝尤萬金恃勢凌人，遂更加強青風訪「國庫城」之決心。

由於傳丙一妻兩妾也膝下猶虛，遂視家寶如己出，極為溺愛，養成其佻皮頑劣之性格。家寶不知傳丙是養父，視其為親父。青風不欲家寶知有卑鄙父親，遂隱藏親叔父身份，做盡一切搏取傳丙之信任，成為家寶之監護人，導其向善。然家寶不喜管束，終日欲擺脫青風，求崇拜已久之龍影俠對付青風，青風只落得徒勞無功。

土皇帝尤萬金惡行頻頻，龍影俠亦屢次現身拯救市民，引起城中廣泛談論。留洋歸來之新聞系女畢業生童芷君天生好奇，以訪尋龍影俠做訪問為第一要務。初時，芷君因誤會家寶為龍影俠，二人相識。家寶與其小舅父賈偉大常聯手戲弄芷君，鬧出不少笑話，然偉大卻暗暗戀上芷君而不自知。

Cheng Qingfeng lost his parents at a young age and lived with his older brother, Cheng Lang. He was shocked to witness his brother sacrificing his own wife and child to escape from enemies. Thankfully, Qingfeng managed to save his nephew, Jia Bao. From then on, Qingfeng lost contact with his brother. He settled in a rural area and entrusted Jia Bao's upbringing to a kind-hearted man named Bing.

Eighteen years later, Qingfeng learned exceptional martial arts skills and disguised himself as a simple-minded doctor. In reality, he was the legendary vigilante known as the Dragon Shadow Hero, who upheld justice and punished evil. His fellow disciple, Zongxin, always accompanied and supported him. In order to reunite with Bing and Jia Bao, Qingfeng traveled to a place called 'Treasury City.' On his way, he learned about a local tyrant named You Wanjin, who oppressed the people with his power. This fueled Qingfeng's determination to visit Treasury City even more...