The smell of smoke and Lost River is enveloped in an eerie haze. Newcomer to the town, Lill, is anxious. Her husband Perry is at work and she is out alone on their 25-hectare once weekender. She doesn’t know how far away the fire is and doesn’t want to look a fool by calling for help. Finally a neighbour visits Lill’s house and re-assures her that the fire is 15km away and has been brought under control.

But that night, Lill can’t sleep. She gets up and follows the glow of the distant fire. Eventually finding it beside the road north of town, she watches the amazing firies in action. Lill realises that belonging and surviving in this community means belonging to the RFS.

The community of Lost River needs volunteers, the small town heroes without whom so many country towns would wither and die.

There’s the captain, “Backa” Burke, everybody’s mate. There’s Joey, Mr Responsibility, with a serious demeanour that belies his youth. There’s Joey’s gorgeous girlfriend Fifi, a member of the notorious Sharp family, a family who knows no fear. There’s the equipment officer, silent Eris with the angelic singing voice. There’s lads and lasses and blokes in their 50s.

Then Old Peg Beecher smashes her car and needs a lift to her CWA meeting, and the only one who can do it is Lill. Lill expected that being part of the community would be hard work, but she didn’t know you had to be a saint to even make a start!

Meanwhile, the fire that they thought was put out is still smouldering, and Lill’s worst nightmare comes true.

Even one bad fire can kill-but this time they’ll be fighting on two fronts.

The Fireflies continue their work to fight against the raging fire.

Lost River is in recovery from a devastating fire that nearly took the lives of some of their best firefighters and local farmers.

Perry struggles to come to terms with the loss of his home, while Lill and his daughter Taz rival for his attention.

Meanwhile tension mounts between Joey and Fifi over Fifi’s actions concerning their baby.

Luisa learns that her secret love affair with the local cop Mike, is no longer a secret. It all comes to a head when Rebekah Sharp turns up and announces that Luisa’s husband Eris was inside a fire truck engulfed by flames. Suddenly Luisa realises that a lot more people know about her affair than she thought. She rushes to be with Eris who is feeling lost and alone.

Backa is trying to deliver on his promise to be “there” for his wife Svettie, but his fire crew has been traumatised and there’s counselling to be done.

Gossip is spreading like wildfire through town about the fire brigade officer Eris Parsons shooting his dog. Eris and his wife Luisa aren’t around to set the record straight, they’ve gone into hiding. Seems like everyone in Lost River has something they’re trying to escape from.

Svettie is trying not to drown in her problems. Her husband’s uncle Jeff is holding the purse strings of her family’s finances and she’s tired of husband Backa not standing up for her. She runs away to a seaside hotel for a night of something she desperately needs; pampering.

While she’s away Backa must juggle his family and work life with the captaincy of the Lost River Rural Fire Brigade and it’s no easy task.

Backa’s younger brother Joey has returned to Lost River for Fifi and their unborn baby. But things aren’t the same anymore and the couple can’t seem to connect. Joey retreats to a caravan in order to figure his life out.

Meanwhile children’s book illustrator Lill is finding it increasingly difficult to reconcile work with the commitments that come with being part of the Lost River community and when her business partner KC arrives from Sydney, Lill realises she can’t escape. But there are other distractions in the form of firefighting and after accompanying Backa to the scene of a potentially dangerous fire Lill is hooked.

Fifi has to deal with her unpredictable brother Hank who has just returned from prison and has a different story to tell to everyone he meets. But it's Fifi he's most interested in and when he visits her at work she's again reminded of what a different person she's become since he left. Back at home the Sharp family try to welcome this free radical element as Hank tries to wheedle his way back into Fifi's life. Later that night she finds herself in an unexpected kiss with Joey. Lill and Perry are trying hard to deal with Taz, Perry's moody teenage daughter who's arrived for the holidays. She's travelled with Hank on the bus up to Lost River and has heard his stories of brutal prison life. She clashes with Lill over everything and confronts her father with her palpable distaste for her stepmother. In his Fox Cove office, Perry begins Anger Management sessions with Hank and is soon alerted to the strange pathology that consumes him. Lill prepares for the fire controlled Hazard Reduction but is unprepared for the discovery she makes when she and Svettie clean out Peg's house. Left on her own she finds a hatbox of letters that bring up a traumatic, damaging event in her own life. An argument with Taz leads to her confiding in Perry and eventually to confronting Peg. Backa struggles with the responsibilities of a dangerous burn-off and the knowledge that his deal with his Uncle Jeff may well betray his brother. Every little thing seems to go wrong on the day. Backa is left with a headache and a sinking feeling that his problems will re-emerge. It's only a matter of time.

The Lost River rodeo could be the last throw of the dice for Backa and Svettie's shop. Stocked up for their biggest annual trading day, they hope to pay off their immediate debt and avoid the bank foreclosing, but the news of fires down south keeps Backa and Svettie stretched between hope and despair. Confronted with imminent failure, Backa finally tells Svettie about his deal with Uncle Jeff - a job, a home and a future, under Uncle Jeff's roof and his control. The foretaste of disaster opens them to each other, but neither can see a happy ending for the family. Taz wants a driving lesson but Perry is busy and suggests she practice by herself on the property. After an argument, Taz drives off towards town. She returns in shock, telling Perry she has knocked over a cowboy. Perry takes control of the situation and they search for any sign of a person being run down but find only a cowboy hat. They search the rodeo ground and call the hospital - no injuries have been reported. Perry's not sure what to believe. With Backa busy at the shop, Joey, Fifi and Lill work the rodeo car park, a traditional firies' fundraiser. When the town girls ask Joey whether he is on the market, Fifi takes it as an opportunity to tease. Even Luisa revs up Joey with a bit of flirting. Joey is as confused as ever by Fifi's behaviour, until they kiss and make up. Uncle Jeff brings the bad news of fires; the roads are closed, the rodeo is cancelled and it seems like Backa and Svettie have no choice but to accept his deal or leave Lost River. But while Backa goes to the rodeo ground to tell Joey, Svettie negotiates a dangerous loan from Sharpie and convinces Backa the money has come from selling off milking machine parts stored in their shed.

In a last bid attempt to save her failing shop and keep her family together Svettie has borrowed a large amount of cash from a loan shark. But she's keeping it a secret from Backa, telling him the sudden injection of funds has come from the sale of some milking machinery stored in their back shed. Now they're on easy street, for a while at least. In a mood to celebrate Backa and Svettie have the best day they've had in months, even years! The day soon heats up toward boiling point. At the Sharp's a lazy summer barbecue descends into chaos. Eldest son Hank has returned to Lost River and he's ready to cause as much trouble as possible - especially for Fifi. Hank can't forgive the fact that his younger sister is now all grown up and responsible and pushes to find the bad girl he farewelled when he went to jail three years ago. When Rolly Patterson arrives mid-party and makes a beeline for Fifi it seems Hank might get to see the old Fifi after all. There are others for Hank to 'play' with too, in the shape of Kieran and his girlfriend Noodle and when Perry's daughter Taz turns up, it's open season... Perry and Lill arrive at the scene to pick up a distraught Taz and it leaves Perry with a sinking feeling. Is he ready to become a parent the second time around? For Lill, one of the core promises of their relationship has been broken.

It's the summer solstice, the longest day of the year, and the fourth anniversary of the death of Jeff's teenage son Damien. It's always been a long day for Jeff and today is no different as he wakes with a feeling of dread and sadness. Things only get worse when Damien's old girlfriend Fifi arrives at the house to present Jeff with Damien's battered old guitar which she's held on to for all this time. Jeff receives the guitar in bad grace and continues to alienate the remaining family he has around him - particularly Joey, who asks Jeff if he can have some cattle he has been promised. Jeff refuses his nephew's request, as always, in an attempt to control his destiny. However, with a little strategic advice and help from older brother Backa, Joey takes back what is rightly his. On a mission from hell, Jeff clashes bitterly with Svettie insisting that young Carter is sent to boarding school instead of the local Fox Cove High. But Svettie is resolute; she wants her son beside her always. Meanwhile Lill is doing her best to avoid her own relationship problems. She abandons her home for the day, seeking a bit of light relief with the Lost River firies, particularly Joey. Perry is also struggling with his relationship and takes his tension out on his P.A.

Backa dusts off his suit for a lunch meeting with the golf course developers. What Backa doesn’t know is that they need 40ha of Uncle Jeff’s property for their prospective resort.

Backa is surprised to find an old school friend, Sam O’Donnell in attendance. Sam is consulting as a lawyer for the group and has been enlisted to get Backa to convince Jeff to sell. As the two men reminisce over old days, Backa learns the real reason he’s being wined and dined. And there’s a sweetener on offer-they’ll buy the craft shop if he talks Jeff into selling. But Backa’s father’s ashes have been scattered on part of the 40ha and he’s left with a real dilemma. Svettie is thrilled, thinking they’ll be rid of the shop once and for all.

Lill decides to escape to a girls’ afternoon in the pool, but it’s no holiday. When the women start gossiping, Luisa learns that her affair with Mike was not a secret after all and she was not the only one-at least seven other women in town, including Ali! In the middle of the revelations, Lill’s business partner, KC, turns up with some bad news for Lill. KC has been offered a job on an older children’s novel that does not require illustrations and wants to put their partnership on hold. Lill’s career prospects seem suddenly shaky.

While Lill’s out, Perry and Patto decide to get the mud brick palace moving. Needing a few more hands, they’re off to the fire station to recruit Joey and Eris and the boys have their own afternoon getting stuck in the mud.

Peg is back. Escaping from her nursing home, she makes a beeline for her house only to find it's been rented out to the new doctor and his family. When Peg lands on Lill's doorstep, Lill decides to champion her cause, but she doesn't know what she's let herself in for. Peg's not happy, so it's tantrums all round when she avails herself of Lill and Perry's, then Backa and Svettie's hospitality. It's hard enough for everyone without having a grumpy Peg Beecher in the equation. Backa is agonising over whether to sell the homestead paddock that his father's ashes are on: will it betray his father's memory? While Svettie sympathises with his dilemma she knows they need the money and pushes him accordingly. Backa visits Joey to ask his advice, but Joey is furious that Backa would even contemplate doing such a thing. Meanwhile Lill and Perry are still trying to patch up their relationship as best they can. Fifi comes home to find Hank acting even more suspiciously than usual, and when he hands her over some cash she knows something is going on. At dinner the next night, the Sharps hear of a bookie robbery over the radio. While everyone suspects Hank, nothing is said. Hank is full of bravado and when he destroys a piece of Joey's property, Fifi is pushed over the edge. She will be forced to choose between her new life with Joey and her family.

For Svettie, the little Russian housewife come drug dealer, life is about to take a drastic turn. An old business acquaintance, Kim Porter, turns up and convinces Svettie to invest in an aquaculture development. Believing she’s ultimately securing a future for her family, Svettie finds the confidence to revisit Val, the ‘Lender of Last Resort’, who gives her the $25,000 to invest in the venture.

Svettie feels like she’s finally on a winner. It’s only when Jeff unknowingly bursts her bubble, that Svettie realises her gamble was too great.

Lill and Perry have reached a standoff in their relationship. Not knowing where to turn, and going stir crazy in the shed, Perry suggests they take a bush walk. It begins reasonably well, but ends in a strange game of fantasy where Lill reveals more than she intended.

Meanwhile, Rebekah fears that Kieran may end up in prison after it becomes clear that he is starting to toughen up like his older brother Hank. Rebekah puts pressure on Sharpie to get Kieran away from Hank’s influence.

When news of a bar job in Queensland comes through, Rebekah finds herself having to face one of her biggest fears: saying goodbye to her son to save him.

Lost River’s very existence is threatened in this gripping episode of Fireflies. Fearfully, Backa watches the fire trucks roll in to Lost River. Backa believes that it is less than 24 hours before the fires reach the village, and he expects they’ll come from the west as well as the predicted front to the east.

Not only is the Lost River brigade fractured, but its members also insist on sniping in front of Divisional Commander Donna Bruce. Backa needs Donna to trust his judgement-they have to get out to the fires instead of waiting for more intelligence from Firecom.

Svettie makes an unexpected visit to the station and learns that the fire may reach Deep Creek by nightfall. She alerts Sharpie, who enlists the help of his son Hank, to help harvest their Deep Creek plantation before the fire arrives.

Meanwhile, Lill asks Perry for a truce until the fire has passed, but Perry refuses, accusing her of demanding his support while she destroys their marriage. He insists she has to learn to act on her own.

Backa convinces Donna that the only way he can unite his brigade is to get them out to the fire ground. However, when they confront the raging fire, the flames have spread too far and Backa is forced to fall back to Deep Creek to backburn.

Svettie, cut off from all communication, is in the middle of the area he intends to burn. Kieran, knowing where his father, brother and Svettie are, convinces Lill that they must warn them before they get trapped. When Lill becomes a hero on the fire ground, she realises maybe she’ll be able to survive on her own after all.