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.

Agnes Brown has family troubles to contend with: her son Dermot has fallen out with Maria Nicholson, his long-term girlfriend, and Grandad is feeling poorly. After a sleepless night, Mrs. Brown decides to try to sort out Dermot and Maria's problem by giving Maria the benefit of her advice. But her heart-to-heart with Maria only succeeds in making the dispute worse.

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.

Dermot's pre-marriage nerves get the better of him and he locks himself away in a cupboard, so it is up to Agnes, Fr Quinn and best man Buster to try to calm him down. Meanwhile, Rory tells his mother he is gay.

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.

Spartacus, the old family dog, is looking poorly. Reluctantly, the family decide the time has come to put her in a home. However, when the Brown children gather together to decide how to break the sad news to their mother, Agnes gets the wrong end of the stick. Under the impression that her children are planning on putting her in a nursing home, a furious Agnes sets out to persuade her children she is not going senile.

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.

There is bickering aplenty in the Brown household, as Rory and Dino are on the rocks and Agnes and Betty rub each other up the wrong way. With Maria about to give birth, Cathy convinces Agnes to build bridges and invite Maria's mother Hillary out for dinner. However, the night comes to an abrupt end when Maria goes into labour. Can the family get Maria to the hospital in time?

A secretive phone call from a solicitor to Mrs Brown leaves her children suspecting one of them may be adopted, while Father Quinn returns from rehab and asks Agnes to help out at his annual garden party - although as she proceeds to drive him crazy with a smartphone, his recovery may be short-lived. Meanwhile, Cathy receives a blast from the past, Rory and Dino have a bust-up, and Mark and Betty deliver bad news - they are leaving for Australia right away.

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.

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.

It seems that everyone in the Brown family has a date for Valentine's Day except Agnes, so she resorts to the internet to find herself a man. Dermot tries to come up with a loving gesture to prove to Maria that he can still be romantic - but he makes the mistake of taking advice from Buster - while Agnes and Winnie are fascinated by Betty's sex manual and Grandad ends up addicted to Viagra.

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.

Agnes is disappointed with Cathy when she decides to get a boob job to impress her boyfriend, Professor Clowne. Agnes is also distinctly unimpressed with Buster when she meets the man he has hired to measure up her kitchen. Meanwhile, Professor Clowne has a life-changing proposal for Cathy - if he could only find the perfect moment to ask her his very important question.

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.

Baby fever hits the Brown household as a pregnant Maria prepares for motherhood, and Agnes is keen to give her new daughter-in-law her unique brand of advice about raising children. Maria is grateful when Agnes offers to look after the robot baby she has brought home from her pre-natal class, but it turns out that Mrs Brown's babysitting techniques are not exactly orthodox. And Maria has some exciting news for the Brown family.

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...

Lotto fever has hit Foley’s bar, and it doesn’t take long before rumours swirl around Finglas that Agnes is the jackpot winner. Meanwhile, a DNA test and the surprise return visit of Cathy’s childhood friend leaves Agnes with some serious questions to answer about her past. Guest-starring Debra Stephenson.

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?

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 feeling down in the dumps, and granddad’s bowel movements aren’t helping matters. The place is a mess, she can’t seem to get any sleep, and to make things worse, Maria’s home remedies end in disaster. Will the family show some much-needed and long overdue appreciation for poor Agnes?

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