Dermot and Maria decide to renew their wedding vows, forcing Agnes to organise the ceremony alongside arch-nemesis Hillary. Will she be able to cope with Hillary’s high-society demands? Meanwhile, Fathers Damien and Trevor go on a mountain pilgrimage that goes wrong. Will they make it back in time to officiate at the ceremony? Or at all?

The Browns are excited as preparations for Rory and Dino's big day are in full swing - although Agnes's mood is dampened when she meets flamboyant celebrity wedding planner La La Doggy. The foul-mouthed matriarch also clashes with Father Damien when he raises some religious concerns about the ceremony - and to top it all off, she gets more than she bargained for when she invites Cathy's boyfriend's parents over for the evening.

Agnes decides to try out speed-dating at Foley's, while a promotional scheme by Buster and Dermott backfires for the salon – can Agnes and Winnie step in to save the day? The arrival of a new neighbour puts Agnes and Winnie’s friendship to the test.

Agnes is disappointed when she discovers she is not invited to Maria's hen party because she is too old, so she and Winnie decide to crash the event, but end up in the wrong venue. She invites Maria's mother round for dinner and is so nervous about impressing her that she gets drunk and the evening descends into chaos.

Agnes becomes concerned when Dermot announces he wants to ask his childhood friend Buster, a known criminal, to be his best man. Mrs Brown is distracted when her neighbour Winnie's husband is rushed to hospital, leaving her son trying to raise money for his wedding by becoming embroiled in a money-making scam with his friend.

Newlyweds Dermot and Maria argue over whether they should buy their own home. Meanwhile, Mrs Brown tries to make Grandad happy by secretly staging a funeral for him, but the plans go awry when she mistakes two Mormons - who have been stealing Father Quinn's parishioners - for the men who are supposed to be delivering the coffin.

A hypnotist is booked to provide the entertainment at the triplets' baptism - and Agnes soon finds herself under his spell. Meanwhile, the matriarch's kitchen is falling apart - but that turns out to be the least of her problems when son Mark delivers some heartbreaking news.

Agnes Brown worries that her family is keeping too many secrets when Cathy will not reveal any information about her new boyfriend, Mark will not confess why his wife has thrown him out and Dermot lies to his fiancee's parents about the status of his job

Agnes panics when Grandad says he's leaving, and Foley's hosts its annual chaotic talent show.

Cathy’s book group gets an unexpected new member – Agnes. After accidentally picking up one of Cathy’s novels, Agnes discovers she has a surprising fondness for steamy fiction. When she gatecrashes the next group meeting to share her, ahem, insights, Cathy is mortified.

Mrs Brown becomes a podcast sensation – without even leaving the house. Cathy is horrified to discover her mother has accidentally hijacked her new podcast project.

Agnes helps Winnie learn to drive, risking life and limb across Finglas.

Agnes is desperate for a holiday but cannot find anyone to look after Grandad. It seems her only option is to convince a health inspector that Grandad is losing his marbles. Sparks fly when Rory and Dino move into Mrs Brown's house, and Agnes' late husband Redser gets in touch from beyond the grave with some very ominous news...

Agnes Brown’s son, Dermot, and his new wife, Maria, have a baby on the way, and they are desperate for a place of their own, as the smash-hit comedy written by and starring Brendan O’Carroll continues. The newlyweds just can’t afford to move out, but Mrs Brown has a plan to help her son. Loving mother that she is, Agnes has promised the couple the money from Grandad’s life insurance policy payout for a deposit for their own home. There’s just one minor hitch – Grandad is not dead. Caught between a suspicious insurance company and her God-fearing son, Trevor, Agnes has to resort to desperate measures to keep Grandad out of sight and her dream alive.

Agnes is upset that her son Trevor has been called back to the missions in Africa, but is determined to give him a massive send-off to remind him what a loving family he has back home in Ireland. Meanwhile, daughter Cathy's family counseling session descends into chaos, and Buster and Dermot run into trouble with a circus lion. The only person having a good day is neighbour Winnie: thanks to his new medication, her husband Jackos's libido is back. But while Winnie delights in reminiscing about her former bedroom antics, Agnes makes a shocking discovery.

When Agnes's family start making comments about her weight, she decides to go on a diet, and quickly discovers just how difficult it is to overcome her craving for fish and chips. Cathy brings her new, older man home. He is a psychiatrist, and seems much more interested in Agnes than he does Cathy. Meanwhile, Rory has a professional dilemma when he discovers some illegal drugs at work.