Major Crime and NSO unite once again as a terror attack looms as a real possibility. Detective Zane Malik uses everything in his power to discover the conspirators and in doing so finally finds out why Agent Angleton was killed.

Muslim detective, Zane Malik, is fighting crime in a post 9/11 world. A police officer s killed, apparently by two armed robbers 'of middle Eastern appearance.' Zane Malik uses his connections in the Arab community to track down the two youths involved. Malik's search for the truth brings him into a head on clash with Senior Detective, Ray Crowley. Rowley accuses him of putting his community before his job. Malik is angry. He wants justice for the police officer too, but he knows what it is to be an Australian Arab, and feel unsupported by the law. When he was a boy his father was shot by an armed robber; the shooter was never brought to justice. But will Malik be able to find out the truth behind the officer's death before war erupts on the streets of Lakemba?

Two youths are shot dead while fishing. Malik knows first hand what Yelena Moyan, the boys’ mother, is going through. Yelena cannot understand who would do this. Her boys had no enemies. When another body is discovered in waters near by, it seems the boys were murdered because they witnessed the execution of a criminal. Malik is determined to track down the armed gang who he feels are responsible for this latest round of murders. He knows he must find the identity of the head of the gang, but the closer he gets to the truth, the more bodies appear. Malik is starting to question Travis’ loyalty and his friendship with dead gang member, Sterling. Travis says they were just army buddies back in Iraq. But Travis kept silent about this, so what else has he kept back from Major Crime? If he’s not corrupt, what is holding him back from sharing his knowledge? What is the secret Travis wants to remain buried? As Malik enters the battle zone against the armed gang, he still has doubt. Which side is Travis on? Malik knows that in the war against crime, there are no heroes, no glory, just a job to be done. And, like a soldier, he has to put his life on the line to do it.

What has the armed robbery of 36 million and the subsequent escalating violence got to do with a drug rip and massacre in Kandahar, Afghanistan? Malik is hoping that visiting Afghani cop, Khan, will provide the answers. But before he can question Khan, the visitor is executed, and Hunter is broken out of remand. The gang is armed, ruthless and well organised, with a growing list of victims, one being Malik’s son. Malik fears he cannot trust his own colleagues. Is someone feeding the enemy information? Detective Travis is behaving erratically. Why? Does he have something to hide? Travis is struggling to hold his life together, but an old army friend’s actions threaten this. Travis is a man with divided loyalties and he fears his past is about to collide with his present. His friend, Sterling, is in a bad way. Can Travis help him or does he have to sever the friendship for the sake of his own survival? Malik is not the only one wondering what Travis is up to. Detective Lim knows something is very wrong and she undertakes her own private investigation to find out what he is trying to hide from her and other detectives. As the search for the killer of the Afghani cop comes to a head, Malik’s distrust of Travis grows. Something is wrong, but what it is? The mystery grows.

Mere Hahunga has problems with her youngest son, Sam, and enlists Detective Koa’s help. Sam, is going off the rails. Mere pleads with Koa to save him. But can he stop a youth determined to be self-destructive? Sam is involved with Ned Reweti, a Maori gangster. When Koa realises Sam is involved in a violent robbery where a security guard is bashed, Koa knows it may not be possible to honour his promise to Mere. Koa is treading a fine line between his obligations as a cop and his obligations to his community. He attempts to steer Sam into safety by getting him to help with the investigation. Sam refuses to dog on Reweti, and Koa finds evidence another way. Reweti believes it was Sam who rolled on him and exacts revenge in mistaken retribution. Koa has managed to keep his promise to Mere. He saves Sam, but at what price? Detective Zane Malik is focussed on getting the armed robbery gang. But they prove elusive and strategic. His frustration mounts when Kimberly, the insider, is killed in a cruel execution. Were they worried she talked to the police? Malik is determined to shut down this ruthless gang. He confronts Hunter with the details of Kimberley’s death in order to try and get him to roll on the gang. Hunter knows the truth. But he’s not sharing.

Wright becomes personally involved in a case when a young woman is found raped and murdered after getting into a taxi. As a young cop, Wright investigated and charged rapist Roman Wisniewski with sexual assault. He walked through the help of a QC. Now Wright has a chance to put him away for a long time. Wisniewski says he is innocent. But when another victim comes forward, and identifies Wisniewski, it seems as if Wright is right. Wright tries to persuade the victim to go to court to help in a successful prosecution. Keep the bastard off the streets. But there are problems in mounting a case against him, like lack of evidence, and Malik fears Wright’s vision is stopping her from seeing the truth. Wright and Wisnieski go to war. And with it, comes destruction and pain. And as in any war, there is no winner. Meanwhile, Malik works to find the gang responsible for the armed robbery. Hunter is in remand, waiting sentence for the murder of two drug importers. Kimberley, a clerk at the Security Company, which was robbed, takes Hunter a message. Something is up, but what? And can the cops break a woman in love?

Akmal is killed in prison. Malik is determined to find out the truth behind his murder and the murder of NSO agent. Going to Canberra with the widow of the NSO agent leads Malik to an old foe. But his absence causes problems when the squad investigate a mysterious crossbow killing. Inspector Wright juggles professional and personal problems, as her own brother is the target of a intended hit.

The brutal slaying of a respectable middle aged Vietnamese couple in Cabramatta is carried out amidst the stress of the Internal Affairs investigation. This time it's Malik in the hot seat. Whatever he says to I.A. will affect Crowley's future. Meantime, Malik and Koa try to work out who killed Mr and Mrs Ngo. Mrs Ngo was a difficult wilful woman who liked everything her way. Mr Ngo was a community minded man. Was the killer their own son? He stands to inherit the family wealth. The press reveal that several years back Mr Ngo was a witness of a gangland murder by the notorious Black Dragon street gang. Is this connected?

Detective Zane Malik is deep undercover, and in danger. Can he can link arms dealer, Akmal, with the car bomb murder of an NSO agent? Agent Skerritt thinks he can. When Akmal’s girlfriend, a Russian prostitute, is killed, Akmal orders a hit on the man who killed her, a sleazy sex trafficker. And he wants Malik to do it.

Bad drugs are being sold on the streets of Redfern. Addicts are dying. Local Aboriginal leader and anti drug crusader, Adam King, is trying to get the drugs off the street when he is shot. Some say he has been assassinated. Malik and his partner, Pacific Islander, Detective Sonny Koa, try and get to the truth. Why are King's colleagues so unhelpful? And his family downright hostile? Is it just a distrust of police… or is it something more sinister? The conflict worsens between Malik and Crowley as Malik asks for his help with sources and informers and is rejected. Crowley's rage is more personal. Although the rest of the Squad are not aware of it, Crowley's son was one of the drug statistics.

A suburban printer is killed in a car bomb attack. Is this the work of Muslim extremists? Or is it a criminal act? As Detective Zane Malik of Major Crime links up with National Security to search for the truth, the news of the bomb hits the media, and there is fallout in the community.

An ambulance officer is stabbed to death by a kid in an Ice induced rage. When Detective Sonny Koa delivers the death knock, he bonds with the dead man’s Maori family. Sometimes in a detective’s work, the break comes from left field. In investigating the Ice racket, the detectives find a link to the stolen arms that killed the NSO agent in a car bomb. But can Malik convince his imprisoned target, Akmal, to help?