former police officer and one time partner of Kinnear's, is arrested on a charge of blackmailing the Magistrate. Kinnear starts to become suspicious when he discovers that a computer disc was found in the dead man's car but was tampered with by persons unknown. Kinnear's boss Gillespie questions the two detectives in charge of the Poulgrain case, Wicks and Pendlebury as to what happened to the original disc. Without warning, Wicks shoots dead Gillespie and Pendlebury and then deliberately wounds himself, re-arranging the crime scene to make it appear Pendlebury fired first. Kinnear and Paddock are both suspended from duty by newly returned ZTU chief Ted Pratt. But with the assistance of IT-operator Northey, they break into the police data-base unit and copy the original file. But Pratt and Wicks confront them before they can leave the building and it turns out that the file has been altered, now implicating Kinnear in corrupt activities. Kinnear and Paddock narrowly escape an assassination attempt when the latter's house is blown up by explosives set by Wicks. The two detectives are captured by Wicks and his cronies and are then confronted by Pratt, now revealed to be the ringleader of the ZTU corruption. It is now clear that Julie Bale is innocent, having been used as a convenient scapegoat because of her journalistic enquiries into the corruption allegations. It is also revealed that Poulgrain was involved in the corruption ring but, having gotten cold feet, had threatened to go public so Pratt had blackmailed him into committing suicide. Rescued by Northey, Kinnear and Paddock pursue their last option, going to the Premier of Victoria Lionel Cray. However while waiting outside his office, Kinnear eavesdrops on a phone-call between Cray and Pratt, revealing that even the Premier is heavily involved in corruption. Having recorded the phone-call, they kidnap Cray and take him to a deserted road outside of Melbourne, offering to exchange him for Bale who has been abducted by Pratt. In a tense stand-off, Pratt's plan to kill Kinnear, Paddock and Northey after getting the Premier back is foiled when, in a pre-arranged signal, Bale grabs a concealed gun attached to Cray and holds it to his head while Paddock aims an assault-rifle at Pratt and Wicks and their mini-van filled with heavily armed officers. Pratt surrenders and he and his cronies, along with Premier Cray, are all arrested for corruption. Kinnear and