Following the fire in his workshop, Tadgh regains consciousness and realises he is trapped in a coffin, while Fiach believes Mo's tirade of abuse caused Amy to miscarry. Cairiona feels guilty about her lies and considers telling Nuala that she was the one who had the affair, not Vince, and Eimear wonders why Eoin was out all night.
Eimear sees the photo of Eoin and Frances in bed, and Adam leaps into action when a child collapses at a disco after taking drugs he bought from him.
Eimear's drinking and distress after seeing the photos of Frances and Eoin results in a car crash. When Eoin discovers what has happened, he convinces Eimear to flee the scene.
A furious Eimear blames Eoin and Frances for the accident, while Grainne reveals she is thinking of postponing her nursing placement to look after Jason and Cuan. Niamh bribes Adam into selling drugs to an undercover cop, and Catriona faces up to her feelings for Vince.
Now that Caitríona is living with Vince she decides to sell her flat. Mo is looking to buy her own place and Caitríona wastes no time in making her approach! Berni can't understand why Evan would confide in Bobbi Lee ahead of his mother.
Berni is stunned when Paedar tells her the full story of Laoise. Lee's commemorative event causes emotions to rise - and when Vince and Caitriona get close, Bobbi Lee grows jealous.
Berni is in trouble after her outburst at Laoise at Lee's Commemoration night, while Niamh realises Adam has created a fake profile for her on an escort website. Elsewhere, Frances convinces Labhras to cut down on staff tea breaks instead of charging Bobbie Lee for hiring the PA system. Plus, Mo is fed up of everyone knowing her business.
Eoin decides to have Jason over for dinner so he can introduce him to his mum, although Jason is less than complimentary. O'Shea contacts Niamh's father to help sort out the situation with Eric, while the community centre staff picket against Labhras's prohibited tea breaks. Bobbi Lee plots to get her claws into Vince.
When Bobbi-Lee leans in to kiss Vince, she blames wine for her actions. Meanwhile, Frances and Tadhg are under pressure when the insurance company investigates them for fraud after uncovering the truth that the fire was not an accident. Elsewhere, Eimear stops Peigi from reaching for the bottle when she cannot cope with the stress of her recent confrontation with Jason.
Eoin proposes to Eimear just before he goes into the operating theatre. Vince begins to understand just how devious Bobbi Lee can be in her attempts to draw his attention, while Berni offers some support to Bobbi Lee following Lee's death.
Eimear blames Peigi's drink problem for getting Eoin into hospital and does not take kindly to an unexpected visit from Tadhg. Meanwhile, Katy wants Padraig to let her cover for the new chef and Caitriona is worried that Vince has forgotten Maeve is a part of their life together. Plus, when Frances begs John Joe to lie for her and Tadhg to help withdraw the fraudulent insurance claim against them, he agrees to say he saw youngsters acting suspiciously.
Peigí is less than thrilled when Eoin tells her about his proposal to Eimear, while Tadhg and Frances are delighted to discover the insurance company has dropped the fraud claim.
Mo is disappointed that the deal with Caitríona fell through and she is back where she left off, so Mack offers to come house-hunting to cheer her up.
Evan is furious with Berni after discovering that she manipulated his father when they were together. He tries to avoid her but Máire begs him to give her a chance.
Caitriona discovers that Annette has been spreading nasty rumours about her, and Jason inadvertently gives Tadhg ammunition to use against Eimear.
Peigí's frustration at being pushed out of Eoin's life grows as Eimear and Eoin make wedding plans, while Noreen finally convinces Katy to get screened for the BRAC cancer gene. But the possibility of having a long-term illness freaks Katy out. A triumphant Caitríona is on a high after outing her online troll and is adamant to pursue her blog-writing. But when she reveals the subject of the manuscript she has been working on, Vince is sceptical, and cautions her on the dangers of publishing a barely-disguised account of Berni's traumatic relationship with Cathal.
Eimear is stressed out planning her wedding, and Tadhg is making sure he adds to the worry. He taunts her by cracking jokes about her mother, his ex-wife Rita.
John Joe is in shock when he catches Mack and daughter Deirdre in a state of undress. Meanwhile, David hopes his plans for a Christmas concert will impress his girlfriend Alana.
Peigí takes drastic measures to prevent Eoin from sending her packing to Athlone, while Katy anxiously awaits her cancer gene test results.
Peadar is disappointed when social services step in to look after the baby, Deirdre is thrilled to be assigned her first case and Tadhg continues to provoke Eoin.
A seething Tadhg is determined to teach Eoin a lesson he will never forget after being humiliated on New Year's Eve, and Eoin receives news of Eimear's disappearance. Meanwhile, Máire and Peadar light the holy candle that first brought the baby to them, praying for good news.
A search party is organised to look for Eimear as Eoin has difficulty shaking off the feeling that Tadhg had a part to play in her mysterious disappearance. Micheál decides not to give up on love and determines to resume dating. Much to David's delight, he agrees to give his date night a second chance, but the two are unaware that they have their eye on the same girl.
Mo is caught in the middle of David and Micheál's love dilemma, while Katy's fears for her health continue to burden her, and Pádraig is in the firing line of her cranky moods. Meanwhile, Eoin is adamant to prove that Tadhg was behind Eimear's disappearance.
Peadar is feeling the strain of caring for baby Nollaig and is exhausted. Tensions are heightened when O'Shea delivers shocking news about the baby's mother. Meanwhile, lovelorn David decides to focus back on his work in Teaghlach when he meets Ronán, a troubled youngster on a downward spiral.
Katy is overwhelmed when her parents indicate they are willing to sacrifice everything they have to pay for her expensive egg-freezing procedure. Peadar and Máire are horrified to discover that the woman claiming to be Nollaig's mother is a fraud, while David is determined to keep Ronán on the right path and convinces Mícheál and Labhrás to give the troubled youngster a second chance in his job at the Ionad Pobail.
Mack disregards his pressing health issues and self-medicates instead of seeking help, while David wants to prove Rónán is not guilty of stealing the money from the Ionad Pobail.
Despite everyone's protestations, Caitríona secretly chooses to publish her book, with Bobbie Lee stealing a copy and revealing all to the villagers. Meanwhile, sleepless nights take their toll on Peadar and Máire, but they are jolted by the surprise arrival of their granddaughter Fia.
A worried Peadar tells Fia he had a child he did not know about until last year. David is furious to learn Micheál has to give Rónán a reference in court.
Evan is back and knows what Fia is hiding from Máire and Peadar. Meanwhile, John Joe assures Noreen he will do whatever it takes to pay for Katy's expensive fertility treatment, and Niamh is determined to escape her over-protective mother.
Máire grows suspicious of Evan's interest in baby Nollaig, and as Caitríona's book becomes the talk of the village, Berni is intrigued to find out what she has written about her.
Caitríona lies to Berni to ensure she will be the star of the show at the book launch, while Máire is determined to prove that Evan is baby Nollaig's father. Elsewhere, Jason jumps to Katy's defence.
Máire is determined to prove Evan is the baby's father, searching for traces of his DNA. Jason feels jealous when he mistakes Katy and Dr Tiarnán's friendliness for flirting.
David is furious when he learns that Micheál told O'Shea about Rónán fleeing Ros na Rún, weakening the young juvenile's defence against the authorities.
Máire's detective work pays off, Evan's DNA test reveals a definite familial link to Nollaig, leaving Fia to face up and take responsibility now that her secret is out. Rónán's court date arrives, and Mícheál and the community anxiously await the verdict.
Evan tracks Fia down and begs her to come home, but she is unwilling to part with the truth about her baby. Meanwhile, Jason is unimpressed when Katy cancels on him, having organized a birthday surprise for her, and Mack pleads with Dee to explain why she turned cold on him. Plus, John Joe earns back the money he scammed from Tadhg.
Dee may be putting herself in danger with her client and Jason continues to give Katy the cold shoulder for standing him up.
Tadhg plays a trick on John Joe, while Jason humiliates Katy by brushing off their kiss. Elsewhere, David decides to play Cupid for Micháel and Superintendent O'Shea.
When John Joe outlines the real facts behind the court case, Dee is shocked when she realises how terribly she misjudged Mack. Meanwhile, Berni receives a box of Cathal's belongings, and Bobbi-Lee tells her old friend Suzanne a tall tale about her love life.
Katy and Jason agree to keep their relationship a secret for now, while Bobbi Lee throws a wild party in an effort to woo Tiernan, but must take drastic action when her friend arrives in Ros na Rún.
Evan is growing tired of Fia's blasé attitude, as well as her coming and going as she pleases while Máire and Peadar look after the baby. Meanwhile, Jason is ready to reveal his relationship with Katy to Ros na Rún, and Tadhg unwittingly accepts the role of soccer coach for the local Under 10 Team.
John Joe disapproves of Katy's newfound romance with Jason, and sets out to drive them apart. Meanwhile, Bobbi Lee is determined to make her dream of becoming a star a reality, but promoter Suzanne reminds her that fame has a cost. Plus, Mack is quickly reminded of how his ex Dee humiliated him on the witness stand.
In her quest to get back the money Suzanne swindled from her, Bobbi Lee encounters a horrifying visitor from her past, while Mack and Dee are drawn together.
Jason tells Katy he knows about her fertility secret, furious she has broken his trust. An anxious Bobbie Lee decides she wants nothing to do with her ex-husband, while Berni worries how Cathal's anniversary may affect Evan.
Mo is sick and tired of a heartbroken Katy moping around and decides it's about time she heard some home truths. Bobbi Lee is shocked when David gives her the cold shoulder.
Andy send Bobbi Lee a photograph that brings back painful memories and she is furious with him for playing with her emotions. David is excited about his birthday party.
Tadhg is horrified to discover how badly Áine is being bullied at school when no one turns up to her party, while Bobbi Lee is shocked to see Andy in Ros na Rún. Elsewhere, Mack is relieved to hear that his Uncle Peaitsí will not be returning to the village.
Home from the bright lights of London, Gráinne turns her nose up to small town Ros na Rún, but Mo is quick to remind her that this `dump' is her home.
Mo's hopes for a relaxing night alone in her new home are dashed by her friends, who are eager to throw her a housewarming party. Andy's return brings back painful memories for Máire. She is petrified at the thought of crossing paths with him, and suffers a panic attack. Meanwhile, things are heating up between Gráinne and David.
Mo is horrified when her granduncle makes an unexpected reappearance, especially when he claims her house for his own. Maire and Berni fall out over the decision to allow Andy to stay, while Evan reassures Maire that he will keep an eye on things. Grainne is not happy about having her boyfriend turn up unannounced, and becomes uncomfortable around David.
Peaitsí insists he is the rightful owner of Mo's new home, so she resolves to become the housemate from Hell in an effort to force him to leave. Gráinne's friends hit her with the uncomofrtbale truth that she needs to end her relationship with Stuart. Andy succeeds in winning Bobbi Lee over, but an incident involving Máire reveals that he has not changed his ways.
Caitríona enlists Niamh's help to dig into Andy's past as she pursues a lead for her next story. Frances tries to reach an amicable agreement with Pádraig when he threatens to take legal action for his fall. Evan cannot understand why his mother has forgiven Andy so easily.
It seems Andy is back to his old ways as he ransacks Berni's apartment. When he finds that playing on Evan's emotions is a challenge, he turns on the charm with Bobbi Lee.
Andy tries to hack into Berni's bank account, then makes Bobbi Lee a tempting proposition. Gráinne faces the music, while Peadar's friends struggle to keep his party a secret.
Katy and Deirdre are walking on eggshells with their boyfriends Jason and Mack, while Bobbie Lee is in hot water when Berni discovers the identity of her credit card thief. Plus, Pádraig asks Frances to give him driving lessons, but David refuses to let him get behind the wheel.
Andy cannot believe his luck when Áine falls into his trap, and hatches a plan to demand a ransom from Tadhg in exchange for his little girl's safety. Last in the series.