Synopsis
Growing up by the sea, Zhou Kai is able to combine his intrepid nature and his knowledge of his surroundings into a successful smuggling operation. His partners include the loyal and trustworthy Mark, the insidious Rubberband and the submissive Cang. Kai’s younger brother Zhou Chao has looked up to Kai all his life, but he also happens to be an up-and-coming star in the police department’s narcotics division.
To set up a deal in the development of a new form of narcotic with the yakuza, Rubberband devises a plan to set Kai up. Kai survives the botched deal, but he is then captured by the police. When Rubberband sends his men to steal Kai’s computer, the thugs accidentally kill Kai’s father. Heartbroken and enraged by the consequences of his brother’s crimes, Chao disowns Kai.
Meanwhile, Mark travels to Japan to kill Rubberband and avenge his blood brother. However, the ensuing gunfight leaves Mark badly hurt and his left leg crippled. Rubberband’s betrayal breaks up the smuggling group, but the cowardly Cang somehow manages to use the breakup as his way to climb up in the crime world.
Three years later, Kai is released from prison and vows to start a new life for himself, but the unforgiving eyes of Chao and society at large stop him at every step. Cang, meanwhile, has become the new kingpin in town, manufacturing and dealing drugs for enormous riches. Aiming to destroy Cang’s operation, Chao goes on a relentless investigation that puts him directly on a dangerous path in Cang’s wrath. To protect his brother from danger, Kai has no choice but to become a police mole and infiltrate Cang’s operation.
Kai and Mark use their old smuggling tunnels to investigate Cang and hand details of his operations to the police. The police strike Cang with a raid during his deal with the yakuza, but Cang is able to escape using the tunnels and even abducts Kai and Chao’s girlfriends. The two brothers and Mark risk their lives to rescue the two women, leading to an intense firefight at the pier. Mark is killed in the fight, but Kai is able to kill Cang. In the end, Chao puts his own brother in handcuffs, but their brotherhood is finally healed.