1960年代，震撼香港的赌博世界中，出名于老千技巧的"千门八将"派系成员龙四（郑则仕 饰）以暴力为法，霸道无比。直到他在一场大作战中陨落时，庞峰（秦沛 饰）——他的大师兄，因受到同门恩怨而间接杀害了弟子，被华探长文雄（汤镇业 饰）诬陷并遭抓。 Dragon Four's beloved Bai Hua (张慧仪 饰) was then taken away by Xuan Wu. Five years later, when the film industry in Hong Kong boomed, Dragon Four stepped into the scene, rising to a prominent position as a film producer with Shuqi (蔡瀚亿 饰) and Maki (吴业坤 饰) as his trusted associates. However, they faced numerous challenges within the tumultuous world of cinema, including internal conflicts and complex relationships, while their fellow members continued to face misfortune and danger. Amidst all this, Dragon Four found himself unable to escape the "Thousand Doors Incident," a series of events that unfolded in the "Eastern Pearl River Delta". This gripping tale explores the trials and tribulations faced by Dragon Four as he navigates the intricate web of power, loyalty, and betrayal within the Thousand Doors organization.
