Mark Jacobs takes control of the station after Tom Croydon is suspended from duty pending a coroners inquest into the death of one of the Baxters - a murder he's suspected of committing. Meanwhile, Nick Schultz arrives back in Mount Thomas to help PJ with the murder investigation but it is Kelly who truly believes in Tom's innocence.
Tom is now the prime suspect for the murder of Ryan. Tom, PJ and Nick Schulz believe Helen Morris, the key witness, is lying and set out to uncover her motives for doing so. They discover that Ryan was the father of her expectant baby and Tarni found out about it. Lenny Dysart eventually admits to the Heelers that it was Tarni that killed Ryan and her idea to frame Tom Croydon. Kelly is then kidnapped by Tarni knowing that Tom will come to her rescue. Tom does and is more than a match for Tarni which leads to her arrest. Elsewhere, Amy, Danny and P.J. have to deal ...
Alex, Amy and Susie suspect that Meagan Dwyer a history teacher, who has just given birth to a coloured baby is sleeping with her 14-year-old student Luke Parnell after her irate husband Craig disowns the baby. Meanwhile, Kelly and Joss bring back a Russian drunk to a home of a Russian woman against her wishes - a move they live to regret when they find out the woman didn't know the man. Elsewhere, Alex and Susie sleep together but Alex backs off from her the next day.
Whilst investigating the brutal murder of a young woman PJ, Amy and Garth learn that a second body has been discovered, killed in a similar style. Is a serial killer is at work in Mt Thomas? Meanwhile, Susie gets her promotion to Senior Constable but Jonesy doesn't get his and is somewhat annoyed and ends up blaming Tom from withholding his promotion - but does Alex know more that he is letting on!
The team, with the aid of Garth Henderson, redouble their efforts to find the Mount Thomas serial killer and find a link between two of the victims and a clinic ran by psychologist Bill Lapscott for sexual abuse victims. Amy enters the clinic as a victim to infiltrate the group and grows closer to Bill who Garth suspects is the killer. But is it someone else they have not considered? Elsewhere, Kelly and Joss look into a suspicious robbery and begin to suspect the daughter - Jorja Murphy - was behind it.
With the Mount Thomas serial killer still at large, the team start to look at whether there is now a copycat killer on the loose too. After PJ witnesses Garth losing his temper with Bill Lapscott he does some digging and finds that Garth was the victim of sexual abuse and arrests him on suspicion of murder but Amy is not convinced. After Amy collects food for herself and PJ she is attacked by an unseen assailant. Meanwhile Susie and Jonesy follow up on a report of a baby left in a car, only to find the baby has been kidnapped by the baby's deaf father and he won't ...
The Mount Thomas serial killer saga continues as Amy regains consciousness and sees Garth leaning over her and assumes he is the killer. Garth denies it and states that he saw someone attack Amy before he got to her. But later at the hospital she recalls that she smelt a distinctive smell which sets the team on a different but narrow lead - The Prior family. Then Amy is kidnapped by the killer and the team search frantically for her whilst desperately trying to get answers from the Priors. Amy talks to her captor Steven about his abuse and after wards he knocks her ...
Depressed Bernie Gardner is found dead by suicide in his garden shed after a confrontation with local doctor Dr. Barbara Hunter. Soon after a bomb in found at the hospital and Susie goes to bat to save Bernie's reputation and as she unravels the case, she discovers that Dr. Hunter had more than one person with a grudge against her. When there is a further bomb threat against the hospital, the Heelers can only avert catastrophe by discovering the true identity of the bomber. Joss believes he has a hot suspect in the hospital bombing case, but when he goes off on his ...
Joss is caught in the middle when an armed standoff develops during a game of football. Meanwhile, Susie saves the life of elderly accident victim Molly Sutcliff only to be accused by her daughter Ailsa of stealing her valuable rings. Mark fails to insist that Susie have a full body search which leads Tom to take the opportunity to blast Mark for it, thus escalating their ongoing feud. Fortunately for Susie, Alex makes it his mission to prove her innocence.
When Butch O'Keefe goes missing, his father is going to have to make a choice. So has Tom and he gets Evan (Jonesy) to help him, but it's going to be done Tom's way, even if Sgt Jacobs doesn't like it.
There's valuable farming items that have been stolen and Joss has to deal with a noisy neighbour and her landlady who is a practising witch, who Joss crosses and gets some bad luck. Inspector Falcon-Price is now gunning for Tom Croydon in earnest and has the support of Sgt Jacobs. Whilst Evan is being questioned over the O'Keefe incident.
Amy tries to help a girl she believes is being abused, but it's an uphill struggle all the way and Amy also gets to meet her niece. Tom has family visiting him after a long time and a grandchild he has never met, who has now gone missing, when the car she was in is stolen.
Amy decides to have her uncle charged for the sexual assault she suffered as a child, but her recollection is crumbling and doubts creeps in. When she finally confronts her Uncle, the truth comes out with a surprising twist.
There's a lion on the loose. The trial for Barry Baxter also goes from bad to worse and there's more wild animals on the loose of the two-legged kind. The Susie, Evan, Alex triangle erupts and has a fallout of its own.
Barry Baxter makes his presence felt and has no intention of hiding. He wants Tom Croydon as much as Tom wants Barry. This will come to a head at the pub with Joss and Tom's two missing grandchildren - whose time is running out.
With a spate of classic cars being stolen, Joss will find out what high maintenance one can be. Evan tries to help a brother and sister out when a dangerous sport of UHT surfing, which isn't illegal, but could leave the young man with serious injuries. Susie and Evan's relationship turns sour.
Joss and Kelly help Charlie after a shop is broken into, but he is not what he appears to be and they will run into him again. Evan and Alex are called to a noise nuisance party where drugs and Susie are both present, and things are going to go from bad to worse for Susie.
Three teenagers are killed in an horrific highway collision and there are conflicting stories about the final seconds before impact. Susie continues her relationship with Jason Tyler whilst Jonesy tries to keep his feelings to himself.
A man turns up to see his ailing mother, but Kelly has a go at him first thing and Tom decides he needs to be run out of town. Alex however tries to help him. Sergeant Jacobs has to deal with a missing horse and his daughter being angry at him over a horse.
Detective Garth is back and the investigation into the girl's deaths leads to more bodies. Suspects the police interview, seem to be off in another world for one reason or another. The police think they have the upper hand and one officer will make a career move.
There appears to be a burglary at the pub. Amy insists on investigating and this will force Chris to be arrested as the girl she defended herself against is seriously injured in hospital. Alex is on the trail of the criminal who held a gun to his head and Chris will make a big decision.
Inspector Falcon-Price is called in to see about corruption in Mount Thomas. Alex is seeing conspiracy and someone out to get him at every turn, and does not know who to trust. The atmosphere at the station couldn't be any worse. The station try to help Chris as best they can after her recent ordeal.
Alex, Joss and all that tension at the station is finally going to come to a head. Tom learns the truth and Inspector Falcon-Price is called in to take the statements, where someone will lose their job.
P.J. is selling his house, so Alex and Evan come up with a plan to get a loan to buy the place they are renting, but they get a new landlord instead. Amy and Evan have to deal with a suicidal woman but is she really trying to take her own life? Sergeant Jacobs tries to help a young boy from Widgeree, who is involved in a gang but has artistic potential. But when this conflicts with being there for his daughter, this will lead to tragic consequences.
Tom decides Widgeree is not above the law and gets Mark and Susie to reopen the station there. Amy and Evan are on the trail of a doctor with a large cannabis farm who says he has no idea where it came from. And for one police officer, they will come to a momentous decision.
There's a new constable for the station and a man who has won the lottery, who seems he wants his friends to kill him. Amy is determined to find out why and this leads to a counsellor, where the new constable will make his impression on all of them, that makes no sense. Kelly seems to make a new best friend.
Matt aggressively investigates a teacher who has been assaulted by a student and this will have him at odds with Alex. Estelle pushes Kelly till it blows up but there is more trouble to come for both of them.
Matt is dealing with a family from East Timor when he was stationed there, whilst the others are investigating abuse in the family. Kelly is afraid as she hears of Estelle's escape from an institution.
With a murdered victim to now follow, Matt clashes with Amy on the number one suspect. Susie tells Alex what she thinks of him being sergeant and his attitude towards a 'stag do' will have consequences the next day.
The video store has been burnt down, with its proprietor inside, and suspicion falls on Matt. Meanwhile, Alex continues his half-hearted performance as sergeant, and every decision he makes seems to go wrong. He continues his campaign for a skate bowl, and sends Joss and Kelly to pick up "Sponge" Bob, an old homeless man accused of leaving a café without paying. This leads them to the railway yards where Estelle had previously nearly blinded Kelly with acid, and she is so jittery she pulls her gun on Spongebob, and he lays a complaint against her.
Evan (Jonesy) is taking his detective's exam. Amy is left alone with Matt who seems to cause trouble wherever he goes; accident prone Kelly and Joss are doing some detective work of their own, with the theft of some property.
Evan's first day as a detective is eventful. He investigates a burglary and causes more damage than the burglar ever did. Amy has to deal with an assault whilst patients were anaesthetised. When evidence goes missing and the prime suspect seems to be toying with the police, things will go from bad to worse.
Amy is determined to catch the slippery doctor and put him away, but she is about to learn new things about him. A little boy who won't remove his Darth Vader's mask is looking for someone and latches on to Evan.