In postwar London, a routine incident takes a strange turn when an unexploded bomb in Pimlico detonates and uncovers a long-buried cellar packed with artwork, coins, jewellery, and an ancient manuscript. The recovered document is quickly scrutinized by the historian Professor Hatton-Jones [Margaret Rutherford], who authenticates it as a royal charter of Edward IV. The charter supposedly ceded a house and its estates to Charles, the last Duke of Burgundy, when he sought refuge there after being presumed dead at the 1477 Battle of Nancy. Because the charter had never been revoked, a small slice of Pimlico is suddenly declared legally part of Burgundy, a wrinkle that propels the ordinary neighborhood into an extraordinary international dispute.
The British government, lacking jurisdiction over Burgundy, orders the locals to form a representative committee under the framework of ancient Burgundian law before any negotiations can proceed. Sébastien de Charolais arrives to present Burgundy’s claim, and his case is verified by Professor Hatton-Jones. A governing body is created with practical, everyday people at the helm: P.C. Spiller [Philip Stainton], the local policeman, helps keep order; Mr. Wix [Raymond Huntley], the bank manager, oversees the financial side; and Arthur Pemberton [Stanley Holloway], a neighborhood shopkeeper, is appointed as Burgundy’s prime minister. Together they begin discussions with the government about what the Burgundian treasure might mean for both sides and how it could be managed under this unlikely new political reality. The council’s conversations reveal a surprising possibility: Burgundy might not be subject to the postwar rationing and bureaucratic rules that have strained everyday life for residents and officials alike.
Yet the moment Burgundy’s status becomes public, the area is flooded with opportunists: black marketeers, bargain-hunters, and ordinary shoppers flock to the district, eager to skim a financial edge from this odd situation. Spiller finds himself overwhelmed as the situation spirals beyond his control. In response, the government seals off the Burgundian enclave with barbed wire, and the locals resist what they view as overbearing interference. They stage a dramatic demonstration—stopping a London Underground train and insisting on passport checks for passengers—while the authorities withdraw into a hardline stance, cutting power, water, and all deliveries to the border. The message to Burgundians is blunt: they should emigrate to England, yet the people refuse to abandon the land they’ve come to see as theirs.
Against this backdrop of tension, the Burgundians devise a cunning workaround. Late at night they connect a hose to a nearby British water main and flood a crater near their hold, solving the water problem in a way that ironically worsens the food shortage by inundating the stores. The new crisis looks insurmountable, but a wave of goodwill sweeps in from London. Ordinary Britons begin to throw food parcels across the barrier, and the effort is soon amplified by a string of audacious measures: a helicopter delivers milk through a pumping hose, and pigs are parachuted into Burgundy to supply protein. The tide of public sympathy makes it politically untenable for the government to enforce a blockade that starves people rather than resolves the dispute.
As pressure mounts, the government recognizes that forcing Burgundy to capitulate through hunger would be unpopular and unsustainable. Negotiations resume, and a central point of contention remains: what to do with the unearthed treasure. In a turn that blends economics with diplomacy, Wix—the Burgundian chancellor of the exchequer—proposes a practical compromise: Burgundy would lend the treasure to Britain as a loan, allowing the two sides to reconcile and share the wealth in a mutually beneficial arrangement. With this decisive move, Burgundy and Britain are brought back into a single, united country once again, while Beveridge-era rationing is reintroduced to the area to stabilize the region.
The resolution is celebrated with an outdoor banquet that foregrounds relief and reconciliation, even as the weather itself seems to mock the moment with heavy rain and a drop in temperature. The film closes on a note that blends relief with a hint of irony: after a long struggle, the old order is restored, but not without a reminder of how fragile stability can be when a single find reshuffles power, economy, and identity in a postwar landscape.
