Clarkson is driving to a local departmental store to buy ingredients for a ploughman's lunch as a "treat" for Kaleb and the gang for farming. As he drives back to the farm, Clarkson comes up with the idea of opening a farm shop to sell his produce, having a location in mind. On returning back to the farm, Clarkson surveys the location and notes a trailer park nearby; satisfied with his location, Clarkson contacts Alan Townsend, his builder of 25 years, to scope out the proposed site.
Despite Clarkson not having gotten planning permission yet to open a farm shop on the site, Alan informs him that they could remove the top soil first and wait for planning permission to be granted before proceeding. Delighted that he was not breaking any laws, Clarkson attempts to operate Alan's JCB excavator to remove the top soil; Alan, noting that Clarkson's digging skills are "quite poor", suggests him to do something else.
Clarkson goes to check on a small patch of "experimental" potatoes he had planted "on spec" a few months earlier and is overjoyed to find that they have grown in multitudes. As he digs the potatoes, Charlie drops by to check on Clarkson and checks on the potatoes as well. It is at this point that Clarkson breaks his farm shop idea to Charlie and discusses a plan with Charlie, who suggests topping the potatoes to keep them preserved for longer in preparation for the farm shop's building. Kaleb lends Clarkson his topping machine for use; Clarkson proceeds to top the potatoes but without actually dropping the topper down, which Kaleb reminds him about over walkie-talkie.
After finding a historical news story regarding Chadlington's spring water, Clarkson decides "to bring back Chadlington's spring water". Lisa accompanies Clarkson to one of the springs, to which they grab some samples for testing. After sending the samples for testing, Clarkson decides to plant some wasabi on account of their high value; he plants about 100 wasabi plants experimentally near another spring with the conditions required for wasabi to grow.
With Charlie incessantly nagging Clarkson about his farm equipment left in the open, Clarkson and Gerald, the farm's newly-appointed "head of security", use large chains to secure his farm equipment. Clarkson returns to his office to find that the village council objected to the construction of the farm shop; a montage of villagers voicing their concerns is then shown. Charlie quickly responds to Clarkson via email, stating that while the rejection letter may not read well initially, these concerns can be alleviated through the submission of a business plan.
Clarkson quickly gets around to typing up a business plan and submits it; this gets accepted to Clarkson's delight, who orders Alan and his crew to begin building the shop, albeit a week behind schedule. Torrential rain soon follows, causing the shop's foundations to be submerged. With their timeline thrown out the window thanks to the torrential rain, Clarkson decides to shift focus to preserving the potatoes; Kaleb digs out his old and disused potato harvester for this purpose. After repairing it, Kaleb, Clarkson and a few others help to harvest the potatoes; while some have rotten, the team manages to save 16 tons for storage.
After storing the potatoes, Clarkson decides to purchase chickens for his farm. Kaleb warns him about the threat of foxes and suggests to Clarkson to reinforce his current fencing with chicken wire; the two meet to build the fences the next day, using a fence post driver Kaleb has dubbed his "man-killer". Once the fencing work is complete, four brightly-colored wooden henhouses Lisa ordered are installed, with Clarkson bringing in sixty Burford Brown chickens he had ordered. Lisa splits the chickens into their henhouses but this is a bit difficult due to the chickens disobeying and trying to escape; Lisa then reveals to Clarkson that one of the chickens had laid an egg while they were being transported.
Back at the office, Clarkson receives a letter informing him of the results of the water tests he had requested for the water from the springs in the farm; while the springs are fine, he is disgusted to find out that the pond feeding his house and the farm has significant amounts of coliforms. He makes a mad dash towards the water filtration room in his house to change the water filters. Charlie pays a visit to the barn where the potatoes are stored, and finds that more of the potatoes have rotten; Clarkson knew he had to begin selling the potatoes, despite the farm shop being nowhere near ready.
To aid in his efforts, Clarkson constructs an honesty box using a filing cabinet to aid him in selling the potatoes. The scheme works, with Clarkson earning £5.35 for his efforts. Two construction workers stop by to buy more potatoes, to Clarkson's immense delight. Knowing that selling 16 tons of potatoes using his current honesty box scheme would be impossible, he begins hoping for a finished shop so he can quickly sell the rest of his potatoes; thankfully for him, the shop begins to take shape as the pace of work begins to pick up.
Alan requests for an electricity and water supply for the farm shop, with their nearest option being the trailer park nearby. Clarkson films and narrates a commercial for the trailer park in exchange for their electricity and water. Charlie meets with Clarkson again to inform him of a restrictive covenant at the plot of land where they intend to build the farm shop; this meant the shop could be built, but no customers could get to it. Exasperated, Clarkson goes into Chadlington to find the owners of the gate and seek their permission to use it for their purposes; the owners of the gate permitted customers to come and visit the establishment, therefore work could resume. The farm shop would finally be completed four weeks behind schedule.
While work resumed on the inside of the farm shop to get it ready and fitted for operation, things continued to happen on the farm; these included the potatoes slowly rotting, foxes circling the hen houses and pheasants eating the wasabi. This causes Clarkson to make the decision to open the shop that weekend, no matter what. Clarkson informs Kaleb of the plan to open the shop the next day, causing him to frantically rush to get advertising signs made and erected. Clarkson brings Lisa to the shop and tasks her to tidy up the place and make it look presentable while he helps Kaleb out with erecting the advertising signs. Clarkson takes to Twitter to advertise the opening of his shop, while Kaleb suggests using the unsold potatoes for a potato fight.
Clarkson, Kaleb and a construction worker help prop up a portable toilet and sets out to collect the eggs he would be selling at the shop; he manages to collect a measly 11 eggs from the chickens he had bought, much to his consternation. When he returns to the shop, Charlie drops by, commenting that he couldn't have set it up in a windier place. Charlie comments that Clarkson is unable to sell any of the meat he had planned to sell because he had not gotten approval to sell the meat, much to his annoyance as he could only get the checks done the next week. Clarkson comes up with additional ideas for the shop but is continually thwarted by Charlie being a stickler for the rules.
Clarkson and the others work through the night to finish up the shop; this is not sufficient and the gang spends the remaining time the next day before opening to add the finishing touches to the shop and stock it. By opening hour, all work was finished, with Clarkson now wondering if his tweet was enough to draw people in; while initially a few customers show up, word for the shop eventually gets around, resulting in a massive jam leading up to the shop. Throngs of people begin to arrive on foot, causing Lisa to be incredibly busy; Clarkson decides to be take this opportunity to serve as entertainment for the guests out front, signing autographs, taking pictures and engaging in friendly banter.
With customers piling in, the ground was breaking under the stress, causing some cars to get stuck in the mud. Kaleb offers a towing service, asking for £10 to tow their car out of the muck using Clarkson's tractor. Clarkson catches wind of this and is not pleased, stating that this is "a shop" and that he is here to "provide a service". With no end to customers in sight, Clarkson helps out with carrying goods to their cars and attempts to sell his mutton and other meat under the counter.
After an arduous day, Clarkson and Lisa close the shop and count their earnings; the shop has earned over £1000 after combining both cash and credit card earnings, making Clarkson overjoyed. Lisa mentions to Clarkson that work is not close to being over, and despite having sold a lot of potatoes, they still had "so many left". Clarkson states that "there's always tomorrow" to sell the potatoes, but is rudely awakened by a letter from the council forcing the farm shop to close due to a lack of a slate roof. Calling it "the shortest farm shop business in history", Clarkson hopes that something will go right for them one day.
Tropes featured in the episode:
- Blatant Lies: Clarkson claiming he knew his topper was raised and not lowered when he was topping the potatoes, as well as claiming that everything in the water filtration room was fine.
- Celebrity Cameo: A younger Chris Tarrant appears as a news anchor.
- Oh, Crap!: When he finds out about the massive jam leading up to this shop, Clarkson has this reaction.
- Young Entrepreneur: Kaleb's towing service.
