Postman Harry (Neil Dudgeon) is the hero of the hour when, on his rounds, he saves Roisin (Maria Doyle Kennedy) from dying during an asthma attack. There's an undeniable spark between the pair, which is more than there's been between Harry and wife Kathy (Eva Pope) for a long tim, despite them celebrating their 20th wedding anniversary. But any temptation to stray is nipped firmly in the bud by a car accident which puts Kathy in a coma and leaves Harry and their two children distraught. Kathy's accident poses more problems than simply medical ones – not least when Harry finds unsigned love letters and anonymous illicit texts on her phone.
Single dad Radge tries to repair his foundering relationship with his son Ryan, whose unhappiness is manifesting itself in unruly behaviour at school. When Ryan expresses a wish to move in with Uncle Phil and his boyfriend, 36 year old Radge realises, he would have to be grown up enough to reopen old wounds and tell the boy the truth about his mother.
Dex decides to propose to Amy, after his Catholic beliefs get in the way of their living arrangements. Meanwhile, comatose Kathy's health deteriorates, as she struggles with pneumonia, and Charlie's affair comes back to haunt him, when the lads learn his secret.
Canteen-girl Nancy grows closer to Jack, offering him a place to stay, when his bedsit floods, much to Barmpot's disappointment, but it soon becomes clear, that the quiet newcomer has a dark past. Harry warns Charlie to stay away from Kathy, now that she is out of her coma, and decides to give his marriage another try.
Charlie resumes his affair with Kathy, but a business offer from Abigail leaves him questioning where his loyalties lie. A pool competition brings Jack closer to the group, and best man Barmpot struggles for original ideas, when he is tasked with organising a wild night for Dex's stag do, that doesn't include strippers.
Barmpot recognises one of the men involved, when he witnesses an armed robbery, and decides to speak to the police. Charlie attempts to save his marriage with Abigail, and Kathy tries to turn things around with Harry, hoping she can think of a plan to stop him leaving her for Roisin.