故事发生在20世纪末，拥有着高科技的现代城市里，住着一群有着不同特异功能的人群，他们组建成神秘的杀手组织，号称八百龙，八百龙的长老见其健硕培养有特异功能的人成为杀手，身为手下的黑岛判处组织向苏联逃亡，于是开始派出其他手下前往莫斯科，寻找退出江湖的成员桌球，帮助消灭叛徒。桌球长期居住在苏联，收养女儿叶慕美、儿子姚龙，因为不敌泪七龙和黑岛等杀手，决定与泪七龙合作，泪七龙主要是消灭季秋堂为目的。此时失意的姚龙身旁有泪七龙的女儿紫炎珠香相伴。然而姚龙已经训练成为自由人的杀人机器，被季秋堂的女儿虎小姐以及其他警员合作，调查自由人真正目的，慢慢恢复记忆的姚龙势必要夺回自己失去的，开始与多方势力战斗

The story happened at the end of the 20th century. In a modern city with high technology, there lived a group of people with different special functions. They formed a mysterious killer. The organization, known as the Eight Hundred Dragons, the elders of the Eight Hundred Dragons saw that they were strong and trained people with special functions to become killers. As a subordinate, Hei Dao sentenced the organization to flee to the Soviet Union, so he began to send other subordinates to Moscow to find members who had quit the arena. Billiards, help eliminate traitors. Billiards has lived in the Soviet Union for a long time and adopted his daughter Ye Mumei and son Yao Long. Because he lost to killers such as Lei Qilong and Hei Dao, he decided to cooperate with Lei Qilong. The main purpose of Lei Qilong is to eliminate Ji Qiutang. At this time, Yao Long, who was frustrated, was accompanied by Zi Yanzhuxiang, the daughter of Lai Qilong. However, Yao Long has been trained to be a free man's killing machine. Ji Qiutang's daughter, Ms. Hu, and other police officers cooperate to investigate the real purpose of the free man. Yao Long, who is slowly recovering his memory, is bound to regain what he lost and start fighting with various forces.