With time running out, AC-12 attempt to unmask 'H',the Fourth Man (or Woman) commanding the network of corrupt officers behind the murder of Gail Vella. But sinister and ...

With time running out, AC-12 attempt to unmask 'H',the Fourth Man (or Woman) commanding the network of corrupt officers behind the murder of Gail Vella. But sinister and ...

The search for the mysterious H reaches its climax as long-buried secrets finally come to light. ...

As the hunt for H intensifies, Steve and Kate wonder if Hastings is guarding a dark secret. ...

Tensions rise in the OCG following the events at Eastfield. With troubling questions hanging over the identity of the mysterious H, suspicions mount among the AC-12 team. ...

Corbett's most daring plan yet requires McQueen to exploit links with corrupt police officers. Meanwhile, the AC-12 team make a shocking discovery. ...

A fresh police leak enables another audacious raid, while Arnott's attempts to gather information put him in a dangerous situation. ...

When three police officers are shot dead during the hijack of a seized drugs transport, AC-12 move in to investigate possible police collusion. ...

Things look bleak for Nick as he is interrogated by the murder squad but Kate and Steve, watching the interview, are inclined to believe in his innocence particularly whe ...

Hilton orders Ted to recuse the investigation into Roz, citing entrapment, and proposes shutting down AC 12. Ted is now convinced one of his team betrayed Kate with Jamie ...

The discovery of new forensic anomalies appears to provide AC-12 with a major breakthrough. Meanwhile, Nick Huntley comes under scrutiny. ...

Convinced that Roz is holding something back Steve persuades Ted, to Hilton's annoyance, to search her office. Evidence suggests Ifield was the serial killer but Steve is ...

Kate's interview with Michael Farmer exonerates him from one of the murders, the victim's remains being found in woodland, whilst Ted and Steve continue to question Roz, ...

When Hana Reznikova is kidnapped and taken to a house occupied by simple-minded young Michael Farmer inspector Roz Huntley arrests him, charging him also with the murders ...

Joe 's testimony allows Ted and Kate to bring in Fairbank whilst an email from Lindsay spells trouble for Steve, who finds himself accused of murder. He is however able t ...

Commended for bravery Cottan continues to suggest to Gill and Kate that the rogue officer suppressing information from the sex abuse case and its link to the deaths of Da ...

Steve is stunned by the aftermath of Lindsay's trial and he and the unit are deceived when Hari is brought in for a double murder. Steve learns from girl-friend Sam the c ...

Jackie and Hari tell the AC Unit that Rod killed Danny Waldron but the team are not convinced and later Jackie changes her story, incriminating Hari in Danny and Rod's de ...

Police sergeant Danny Waldron shoots unarmed criminal Ronan Murphy dead and, when his colleagues arrive on the scene, tells them it was an act of self defence, insisting ...

Prasad claims that Dryden wanted Tommy silenced as he was blackmailing him about Carly, hence the ambush. However the order was to spare Lindsay. Hastings charges Dryden ...

Lindsay wakes up in a lock-up and is questioned by her abductors. Prasad soon kills his accomplice, Cole, but Lindsay outwits him and makes him admit on the phone that he ...

An arrogant Dryden is questioned regarding the traffic offence and is dismissive though Steve lets him know Lindsay has revealed that he knew about the convoy route and a ...

Following the deaths of Georgia and the witness it is Steve who gets a grilling as to the police presence at the hospital whilst Lindsay is accused of attacking her neigh ...

A police convoy escorting a civilian under a witness protection scheme is attacked, the witness hospitalized and all the police officers killed, except Inspector Lindsay ...

Gates returns to rescue Arnott but leaves before Kate, her cover now blown, arrives to find evidence that a body had been stored at the warehouse. Arnott recalls that the ...

Whilst the money laundering investigation is passed to Fraud Squad Gates is still hounded by his blackmailers. Kate wants to connect him to Jackie's murder and sets out t ...

Gates, knocked unconscious by the attackers, tampers with evidence, hiding a whiskey glass before police arrive to find Jackie has vanished. He claims he has just got the ...

After a bungled raid which kills an innocent man young DS Steve Arnott faces disgrace. However he is transferred to the anti-corruption squad, whose head, superintendent ...