民国初年，赌坊蓬勃发展，被保安局视为洪水猛兽。保安队张队长假扮年前被杀的赌坊老板的儿子，往钱老板的赌坊要求赌命。因钱老板骗取朱老板的赌坊后，更杀人灭口。张队长赌赢了钱老板，钱不愿将赌坊拱手相让，更打算置他于死地。其后，钱表示愿意与张合作，给予他一半赌坊。但当钱以为张是朱老板的儿子，他决定不留活口。张被活捉，但逃脱了。原来张为负责扫荡赌坊而来，结果钱老板与他的伙计全被保安队带走。

Boss Chai (Wang Sha) serves as the leader of a group of thieves and skilled pickpockets. One fateful night, his most prized possessions fall into the hands of his senior disciple, Hsiao Hsiang Kung (Ye Feng), a renowned master thief among thieves. The two embark on a series of escapades marked by intense rivalry, crafty betrayals, and occasional partnerships. Amid their adventures, Hsiao Hsiang Kung demonstrates that he is not just a thief but also a compassionate man, assisting the less fortunate and coming to the rescue of distressed damsels.