Damian connects the discovery to the story of St. Nicholas of Myra, who dropped bags of money down chimneys to save three girls from being sold. Overwhelmed, he runs to fetch Anthony, who becomes ecstatic when he sees that the money is real. They carry the heavy bag to the house together. Anthony forbids him from telling their father, explaining that the government would take nearly half in taxes. They count the money and discover they have £229,370. Anthony mentions that they have less than three weeks to spend the money before Euro Day, when it will become worthless.

At school the next day, Damian voluntarily gives his snacks to Barry. After school, Anthony begins a spending spree at a local shop for his classmates. When the shopkeeper comments on the spending, Anthony alludes to the upcoming euro changeover. He pays two boys £10 each to lend them their bikes for the ride home.

At home, instead of cooking, the boys order pizzas for delivery. When their father arrives and questions where they got the money, Anthony claims it is birthday savings that need to be spent before the euro changeover. Their father is deeply moved when he sees they have ordered his favorite pizza. To engage his father’s old interest in trivia, Damian asks who invented pizza, and his father happily recounts the history, showing a glimpse of his former self.

On December 1, with 17 days remaining until the Euro changeover deadline, the boys open their front door to find several children waiting on bicycles, offering rides to school for payment. Anthony selects two and pays them £10 each. At school, they pay other students to serve as waiters and clear their table at lunch. Barry sells them walkie-talkie watches for £40. Other students approach them throughout the day, selling various possessions. In the boys’ bathroom, a fourth-grader sells them a vintage Subbuteo football game that belonged to his father for £100.

After school, the brothers surprise everyone by leaving in a pre-booked taxi. Inside, Anthony calculates that at their current spending rate of approximately £350 per day, it would take 655 days to spend all the money—far too slow with only 16 days remaining. He pays the fare with a £10 note and tells the driver to keep the change.

The following morning, the school playground features students aggressively trying to sell possessions to the brothers. Anthony purchases numerous items, including scooters, a watch, and sports memorabilia. They discover the local shop’s shelves have been nearly emptied by children spending their newfound wealth. Damian visits a religious shop and buys saint statues, medals, and cards for his windowsill.

At home, there is no space for all their purchases. To appease Damian, who wants to tell their father, Anthony agrees to play the Subbuteo game. During play, Damian places a saint statue in the goal, claiming it represents answered prayer. Their argument is interrupted when their father walks in and asks where the game came from. Anthony instantly fabricates a story about winning it in a school competition, and their father appears to believe him.

Damian retreats to the hermitage, where Anthony has stored new scooters and other items. Inspired, he takes the money to a pet store and purchases two dozen boxes of various birds. On a nearby hill, he opens all the boxes and releases them into the sky, reenacting a famous act of St. Francis of Assisi. A man in a brown robe with holes in his hands appears, and Damian believes it is a vision of St. Francis himself. The saint tells Damian that after releasing the birds, he went on to help the poor—giving Damian his next idea.

Damian proposes giving the money to poor people as a path to sainthood, calculating that they could help 458 people with £500 each. While Damian explains this, Anthony is installing 30 new television channels. Anthony dismisses the charity idea as impractical, explaining that their neighborhood has been economically zoned to exclude poor residents. He proposes buying a house as an investment instead.

Anthony visits a real estate agent, pretending to work on a school project, and books a viewing. At the viewing, the agent becomes suspicious and angry, ultimately driving away despite Anthony’s cash offer of £210,000. Damian interprets the failure as divine intervention.

Walking back, they encounter an unhoused woman. Damian gives her money and invites her and five friends to Pizza Hut, where the meal costs £175. Anthony calculates that this spending rate would require over 1,300 such meals to exhaust the money in their remaining 12 days.

That night, with help from a brief vision of St. Nicholas, Damian shoves several thousand pounds through their Mormon neighbors’ letterbox, believing they must be poor because they live simply. The next day at school, Barry demands Damian’s snacks. When Damian asks if Barry is poor, Barry beats him up. Damian interprets the assault as suffering persecution for righteousness. A girl named Gemma helps him recover and asks questions about Anthony.

At the hermitage, a man with beard stubble and a glass eye appears, searching for something and asking about money. Thinking the man is poor, Damian promises to bring him cash. Anthony intervenes, giving the man only a large bottle of coins and warning Damian about the danger of strangers knowing about their wealth.

Returning home, they discover the Mormon neighbors receiving deliveries of expensive electronics. Anthony is furious that they spent the money so effectively. Damian realizes that giving money to poor people simply makes them behave like everyone else.

Eli visits their house, explaining that a suspicious character has been seen in the area, and requests permission to mount a security camera on their door. Their father agrees. While installing it, the father discovers the 30 new television channels Anthony had secretly connected. Believing it a miracle, smiles with genuine delight. The family watches television together until Dad falls asleep on the sofa. Damian suggests telling him about the money to maintain his happiness, but Anthony refuses.