Season 12

It has been eight weeks since Tom pushed Tarni underwater, and he is now the subject of a possible murder investigation. Mark is running the station, with Tom suspended, and the new Acting Sergeant Lindy Schroder is intriguing everyone - particularly Joss. Nick is in town to help PJ investigate the case during which time they have learnt that Tarni survived Tom's attempt on her life, and claims Tom then killed Ryan and fled. Tom, however, claims, he never found Tarni, and he was shot at as he left the premises after tying Ryan up. However, Ryan's death does seem to be the work of one of them. While Joss and Jonesy are stuck investigating the arson of a set of bonsai trees, Amy investigates a video store robbery using the same rifle as the one that killed Ryan. When it leads to a friend of Ryan's and Tarni's, it seems to prove that they were involved in Ryan's death but the coroner, and lead investigator Greta Conroy, think otherwise, and Tom is formerly charged with murder.

Tom has been formerly charged with murder, and he seems unwilling to even help PJ and Nick find the truth, even though they also believe that Tarni Baxter has something that she's hiding. But when Kelly is kidnapped, they must attempt to convince Tom to help them rescue her and in doing so, prove his innocence. Meanwhile, Amy attempts to get rid of a case that is annoying her by passing it on to anyone who will take it; and Joss learns more about Lindy Schroder, who was given the position at the station because she is a friend of Mark's.

The Heelers settle into an unusual routine when Tom returns to the station and reclaims his position as Boss. While some are more willing than others to accept it, Lindy discovers that Tom is not going to make things easy for her. As it is, Tom doesn't think much of Mark, who isn't the type of cop he is interested in, and he makes things even harder for the new cop in town. While Lindy finds her job in jeopardy, PJ, Amy, Joss and Kelly find themselves investigating bizarre cases - this is no normal week in Mt. Thomas.

After the second SIDS related death in as many weeks occurs, PJ and Amy grow suspicious and investigate, only to find the town turning against them in its grief. Investigating a problem at the Imperial, Kelly is amused when Chris informs her that Joss has moved out to live with friends, and she forwards his mother's ""care packages"" to the station. Meanwhile Jonesy and Susie are held hostage and are saved by Senior Constable Alex Kirby - Lindy's replacement, and an old friend of Jonesy's.

After a home invasion strikes Mt. Thomas, PJ, Amy and Tom comfort the grieving O'Keefe family. What they don't expect is to learn that the father, Danny, has gangster connections and this isn't going down well with Tom's current attitude. And Susie is forced to bond with Alex, who is enjoying it immensely, when Jonesy is involved in a car chase with tragic results.

Raynor and Kirby investigate a reportedly missing girl that has everything she could ever want. But it seems she has been corresponding with an older male, and he may be ther eason behind her disappearance. Joss and Kelly also try to restart the bluelight basketball team. Kelly discovers one boy in the team had been dealing drugs. Joss gets the team interested in soccer and decides to set up a soccer club. He invites his brother to help. Toni then tries to seduce kelly. Tom also decides it is time to get something on Danny O'Keefe and instructs them to haul him in over anything. Kelly does and Tom is delighted. They can't get anything on him. PJ returns from a conference then Tom says he's going out. PJ needs to go again and tells Amy something more important has come up. PJ finds Tom at the soccer club next to Mr O'Keefe's car which has a broken window. PJ calms the storm then asks if Mr O'Keefe wants to press charges. PJ and Tom convince him not to.

A father disowning his newborn baby leads Alex and Susie to suspect the mother, a schoolteacher, has been having an affair with a 14 year old schoolboy. At first both parties deny a relationship, but when they run away together, the case is all but proven, it seems the realtionship has been going on since the boy was 13. On his 13th birthday in fact. Meanwhile Joss feels sorry for a drunk he and Kelly find in the street and returns him home instead of charging him, overcoming the reluctance of his Russian speaking mother. Next day he finds himself in front of Tom—it turns out the drunk was completely unknown to the woman. Meanwhile, Alex and Susie are on a stakeout when Alex makes a move on her. Susie ends up sleeping with him, and seems to have fallen for him. The next day, though, Alex learns that Jonesy does like Susie - despite his protestrations - and so Alex makes the decision to back off. When the school teacher's husband comes to collect his wife and the newborn baby, it ends i

After a sex offender escapes from prison, Jonesy attempts to help a terrified family find their young daughter; Kelly vows - with Joss's help - to find prove the sexual assault of a female shop assistant; and when the escaped prisoner is accused of murder, Amy finds she will be working with a former boyfriend - Homicide Detective Garth Henderson. Their investigation becomes more complicated, however, when a body is found brutally murdered at Govett's Leap...

Tragedy turns to terror in Mt. Thomas when a second body is found, killed in a similar manner to the first one, and with a crucifix by the body as before. It appears there is a serial killer in town. PJ and Amy work with Garth to track down the only man with links to both girls - a masseuse who seems to fit their profile. But, while in questioning, a third victim is found giving the masseuse an alibi. What confuses the detectives is that the third victim is male which doesn't fit with their established profile of the killer, and it seems they must start at square one. Meanwhile a recently promoted Senior Constable Susie finds Jonesy is jealous of her promotion, since he too is waiting for one; and Joss and Kelly deal with a child whose dog's burn injuries have aroused suspicion at the local vet.

The third victim of the Mt. Thomas serial killer is a gay teacher named Leon Barclay. PJ and Amy discover a link between him and the second victim - Merinda May: a therapy group for sexual abuse victims, run by Dr. Bill Lapscott a psychologist. What makes them worried about this link is that the first victim did not attend, so Amy infiltrates the group to see if this could be how the victims were chosen. As the group share stories of their own sexual abuses, Amy gives one also. While she later insists she was making it up, Bill recognises the signs and knows that she wasn't. He invites her out, and begins getting to know her. Garth, however, begins to spect that Bill himself is the killer - a theory that seems cemented when they learn that Bill lived in the same street as Janelle Watts, the first victim. Amy doesn't believe this theory, so she desperately tries to prove otherwise and ends up suspecting Jeff - Janelle's father - as being the killer. Meanwhile, Bill asks Amy out and they

The fourth victim of the Mt. Thomas killer has been found in an alleyway near Bill Lapscott's house, using what looks to have been a brick from his yard to knock her out. Confusing the detectives is the fact that a different weapon was used in what seems almost to be a different M.O. The only thing tying her to the other victims is the crucifix, and her history of sexual abuse, leading Garth to suspect there is a copycat killer at work. Amy's theory that Jeff Watts is the killer is proven wrong, since he was under surveillance, but Garth suspects it was Bill. They find him, still at the office, having showered. But there is no evidence to link him to the crimes, since his clothes have no blood on them. Day Six. Searching Ngaire's house, Garth finds a love letter from her to Bill. He claims that he looked after her one night when she was suicidal and she developed a crush on him, which he did not reciprocate. Recognising Garth's own issues, Bill tells him to go to therapy and Garth gets

The terror in Mt. Thomas reaches climax point as the serial killer strikes out at Amy. She survived one attack, but knows that whoever it is will kill again before the day is through. And PJ, still certain that the killer is Garth, is forced to prove or disprove his case to stop the killer before he kills again...

Susie starts a crusade to clear the name of a man accused of an attempted mass murder, by leaving a bomb at the hospital. Unfortunately her task is made harder by the fact that the man killed himself on that same day. Meanwhile, suspecting that her change in mood equals feelings toward him, Jonesy plucks up the courage to ask her out, and recieves a bit of a surprise...

After a failure on Mark's part, Tom blasts the team for their lack of protocol when Susie is suspected of theft by an elderly woman, and Alex is the only one who can prove her innocence. During a soccer game, Butch O'Keefe - Danny O'Keefe's son - is involved in a feud which escalates when guns are brought in, and Jonesy is caught up in it. Tom becomes suspicious when an old associate of Danny's from the underworld shows up in Mt. Thomas, and has all the cops put on alert. But out of nowhere, the real source of trouble in town is revealed...

With Jonesy deeply involved in the honour killings in Mt. Thomas, and Tom completely off the rails trying to stop Danny O'Keefe, the station verges on utter chaos.

PJ is concerned by Amy's over-reaction when she is confronted by someone from her past. He encourages Amy to face the reason for her behaviour - renewed contact with the family of the uncle who sexually abused her as a child. Elsewhere, Mark's actions involving a load of stolen tobacco infuriate Tom, and as Inspector Falcon-Price is brought in to the middle of the heightening feud, the tension continues climbing...

Tensions continue to rise in Mt. Thomas, as Amy deals with her past and the power struggle for the station continues.

Amy confronts her uncle with the support of PJ but is her memory tricking her?

Tom faces the spectre of Barry Baxter, the man who killed his wife. Escaping from court on the first day of his trial, Baxter closes in on Mt Thomas, causing Tom to fear for the safety of his grandchildren. Meanwhile, Jonesy finally proposes to Susie but how will he react when he learns the truth about Susie and Alex?

With Tom's two grandchildren held hostage Barry Baxter ives Tom one final ultimatium. Can Tom save the lives of his grandcildren and one of his colleages

Jonesy is dismayed when Susie hits it off with a handsome victim of a car theft racket that the Heelers are trying to crack. Feeling rejected, foolhardy Jonesy risks his life in a ute surfing competition as he tries to salvage the lives of a young man and his pregnant sister. Meanwhile, Joss uses his BMW as bait for car thieves, but loses it another way.

Out on a night-long patrol, Jonesy and Alex are called to a noisy private party. Arriving at the bash, the Heelers soon realise they've come to the home of Jason Tyler, the new boyfriend of Jonesy's ex-love and police colleague, Susie.

Joss and Kelly's birthday celebrations are soured when one of the guests, a lifelong friend of Kelly's, is found dead — the victim of an apparent drug overdose. The preliminary autopsy report reveals that she'd had sex a short time before her death, but Kelly staunchly maintains that her engaged friend was neither promiscuous nor a drug user.

Three popular teenagers are killed in an horrific highway collision with a truck and there are conflicting stories about the final seconds before impact. The whole town wants to believe that the teenagers were murdered by a reckless truck driver, but Amy Fox has to deal with the fact that the truck driver is her cousin.

Alex's good nature makes him an enemy. The man who killed Kelly's father 15 years ago has been released from prison and is in town to tend to his dying mother. A wall of sympathy and police solidarity is thrown up around Kelly. Tom takes steps to run the released killer out of town, but Alex earns the resentment of his colleagues by treating the man fairly.

Mark feels guilty and depressed when the lost teenage girl he handed back to her family is found murdered just hours later.

The paddock at the lonely Biden farm has revealed the remains of three more murder victims, all teenage girls. Charlie Biden has already admitted to killing one, and is clearly the murderer of the others. His wife, Marie, frustratingly takes the high moral ground, until Charlie dies violently in custody, obviously by means of Marie. Mark takes the blame for this death as well and spins further into despair.

An after-hours robbery of the Imperial Hotel is interrupted by the publican, Chris Riley. There is a struggle in the darkened bar, and Chris is left with a badly cut hand and a young female robber in a coma from a blow to the head.

Alex continues a struggle with paranoia after receiving a bullet taped to a transfer application form. Things become more desperate when petty criminal Terry Swanson exploits Alex's situation by involving the police bureaucracy, further inflaming tensions inside the Mt Thomas station. Joss, the one person who can remedy all this, lacks the courage to confront Alex or confess to the boss.

Alex's belief that he is being victimised by his colleagues, and the media attention he is attracting, widens the trust gap felt by the police of Mt Thomas. Alex rejects offers of help and understanding from Jonesy, preferring to fight a losing battle against his idea of injustice. Joss is convinced he will be sacked for starting the whole thing, and drags his feet to avoid the inevitable confrontation with the boss.

Mark befriends a young boy with great artistic promise during a routine investigation into thefts in Widgeree. However, when Mark breaks a promise under duress from his family, the boy turns against him, with tragic consequences.

Mark agonises over his actions after his pursuit of a suspect ends in the young offender's death. His failure to protect himself against a physical threat from another offender is noticed by Susie, who starts to have doubts about his ability to do his job.

Tom confronts his past when an old army mate confesses to a 35-year-old homicide. As the horrific nature of the crime is discovered, Tom begins to question the truth of his friend's confession. Amy challenges Tom over his involvement in the murder investigation and discovers he had a close personal involvement with the victim.

Amy and Jonesy investigate when a recent lotto winner is found bashed and near death on a country road. They suspect his two gold-digging mates. What they don't expect is an admission that they were taking part in an assisted suicide. But what made the man with everything to live for want to die?

On a Saturday morning, after the high school Formal, Amy and Jonesy investigate the death of a teenage girl, murdered, apparently by her friends.

Matt's ruthless approach to truth and justice seems so black and white to Alex that even the victims of crime must have judgement brought upon them. But Matt's way of dealing with a young man who has attacked his teacher shows he may be equally as capable of dealing with an emotionally driven criminal situation as Alex. Kelly tries to sever ties with her stalker, but finds the obsession is just beginning.

Matt's army service in East Timor complicates his dealings with a man who robs a video store. Amy follows up the latest sighting by a frantic mother still seeking the driver responsible for a fatal hit-and-run that killed her daughter. Kelly cannot ignore Estelle White, the young woman who is obsessed with her.

As Amy and Jonesy investigate a grisly murder, Matt forges ahead with his own line of inquiry. The growing suspicion surrounding the new constable appears justified when Matt's chief suspect is mysteriously murdered. Amy is faced with the prospect that one of the Heelers has crossed the line.

Matt's military past is revealed as he is investigated by his peers in relation to a murder, while Amy grudgingly notes Jonesy's potential as a detective. Meanwhile, suffering from post-traumatic stress, Kelly makes a serious error in judgement which leads to a harrowing showdown with her number one fan.

Matt finds a seriously battered man, the former mayor of St Davids, in the boot of a stolen car after a high speed chase. Mt Thomas CI investigates, but with Jonesy away at detective's training school, Amy finds good help hard to find. She strongly disapproves of Matt's aggressive approach to questioning witnesses, but who can she turn to? Kelly is too messy, Susie too nice, and Joss — well...

On his first day on the job Jonesy discovers that being a detective is harder, and more expensive, than he thought. When a woman alleges she was raped while under general anaesthetic, Jonesy fails to make any headway in the case forcing Amy to get involved to show him how it's done. Pushed out of the rape investigation, Jonesy focuses on solving a burglery at the home of a psychiatrist.

Amy initiates a deadly game of cat and mouse with the accused doctor. Despite Jonesy's warnings, she accepts a lunch invitation only to discover the he has a son with Downs Syndrome and doesn't appear to be quite the monster she had imagined. Amy traces the boy's mother and uncovers the doctor's first victim, but just as she is about to put the doctor away, he again turns the table on her.