Agnes Brown, Brendan O'Carroll, is an independent market trader on Dublin's Moore Street, where she sells fresh fruit and vegetables with a steady, pragmatic work ethic. Her routine world is disrupted when P.R. Irwin, Dermot Crowley, a TD allied with a ruthless Russian businessman, unveils a plan to clear the market stalls to make way for a glossy new shopping center. The target swiftly falls on Agnes’ stall when she receives a notice for unpaid tax—left behind by her grandmother—an accusation that could topple years of hard-earned livelihood.
A man working for Irwin appears with a tempting offer: sell the stall to him and the debt will disappear. The choice is not simple, and the town buzzes with gossip and fear as Agnes weighs her options. Her ally Winnie, Eilish O'Carroll, steps in to tell the locals what is really happening, and the pressure compounds: Agnes must defend her stall while she and her friends search for a way to raise the necessary funds. In a twist of family history, Philomena Nine Warts, Maire Hastings, reveals that her grandmother Mary Moccasin was standing with Agnes’ grandmother at the tax office when the bill was paid, implying that no money was owed after all. Tragedy interrupts this lead when Philomena's grandmother is hit by a bus en route to the courtroom, robbing them of a crucial witness.
The court case quickly becomes a media spectacle, painting Agnes as the quintessential Irish mother fighting to protect her family and their livelihood. The attention weighs heavily on her, and she seeks absolution in confession, where she mutters perhaps unknowingly about past choices. This confession lands in the hands of Irwin when he cross-examines her, and the moment forces Agnes to flee the courtroom in shame. The relief and sorrow of the moment are expressed in a tearful moment later as her daughter Cathy, Jennifer Gibney, finds her by the river and helps bring the truth to light on the Ha'penny Bridge, where Agnes explains that she once told the nuns she could only look after two of her six children, a difficult admission that haunts her.
Meanwhile, Dermot Brown, Paddy Houlihan, and his loyal, and often scheming, best friend Buster Brady, Danny O'Carroll, are determined to secure the receipt that could vindicate Agnes. Their plan runs into a wall when they fail to access the restricted area of the NRS, prompting them to recruit a quirky troupe of blind trainee ninjas. The ringleader, Mr. Wang, is intriguingly played by Brendan O'Carroll, the same actor who portrays Agnes, adding a meta touch to the caper. The Russians have already found and destroyed the original receipt, but Dermot and Buster uncover a clue: the receptionist who handled the payment was blind, meaning a braille version of the receipt exists somewhere hidden away.
With this new lead, they bring the braille receipt to Agnes and urge her to stall the case. The plan involves a strategic delay led by a tourette-suffering barrister, Robert Bathurst, who fumbles through the legal maze as the trio navigate their way through a maze of air ducts and cat-and-mouse chases with mobsters and the Garda. The pursuit culminates in a dramatic plunge into the River Liffey, a desperate scramble that tests loyalty and nerve.
Back in court, Agnes initially returns with a document she believes to be the receipt, only to discover that Buster had handed her a betting slip by mistake. The tension spikes as Cathy rises to speak about Moore Street, reaffirming the community’s spirit and her own intention to carry on her mother’s stall when the time comes. This heartfelt moment electrifies the courtroom and gives the troupe a renewed sense of purpose.
The chase resumes in a sequence that zigzags from a Nissan Navara to a daring sprint on a stolen horse, weaving through crowds and steam and spotlight. In a turn of luck and nerve, Buster and Dermot manage to deliver what they present as the receipt to the courtroom just in time, and the case against Agnes is dropped. The air clears, and the Moore Street stall becomes a symbol of resilience rather than a flashpoint of corporate ambition. The story closes on a jubilant note as the group dances on the steps of the courthouse, their unity and stubborn hope intact, the market’s future secured through wit, sacrifice, and a shared love of home.
