Secret Service agent Steve Buchanan and his superior revisit their longest-running case, known as Case 880. The target is a ring of counterfeit $1 bills that carry an unmistakable flaw: the name Washington appears as "Wahsington." Although the prints look crude, most people don’t inspect the bills closely enough to notice, allowing the hoax to quietly spread. The agency labels the culprit as “Mister 880,” and the currency they pass around becomes known simply as the 880s.
As the case unfolds, Steve digs into the trail left by 880 notes, realizing that memories from a decade ago are hazy and unreliable. He studies spending patterns and concentrates his stakeouts in the Brooklyn and Bronx neighborhoods where 880 bills have surfaced before. The search is methodical and patient, built on the idea that a counterfeit operation leaves faint fingerprints in routine commerce and everyday transactions.
Into this tense world enters William "Skipper" Miller, an elderly junk dealer whose brief encounter with Ann Winslow sets off a chain of consequences. When Ann pays him $5 for a decorative item, Skipper hands her counterfeit bills in change. Later, when she unknowingly uses one of these bills at a shop Steve is watching, she becomes a person of interest in the investigation. To explore her possible involvement without raising suspicion, Steve asks her out on a date. On their night together, Ann learns that Steve works for the Secret Service, and she cleverly tries to test him by quietly dropping clues and using outdated slang while she studies a book on counterfeiting borrowed from the library. Amused but not fooled, Steve acknowledges that she checked out the book, and he decides to keep seeing her — convinced that she may have stumbled into the matter without meaning to.
Skipper’s precarious finances worsen after a veterinary bill for his dog drains him further. In a desperate moment, he begins printing more one-dollar notes to bridge the gap, a risky move born from poverty. He even discovers that neighbors are showing flyers about how to spot 880 bills, which raises the stakes for anyone handling the currency. In a bid to shield himself, Skipper digs a hideout beneath the dirt cellar of his apartment building and buries the press and the extra bills there, a plan he enacts with his loyal canine companion by his side. Ann learns of Skipper’s hardship and, concerned for him, arranges for him to get steady work as a handyman, hoping to keep him away from crime.
Meanwhile, Steve faces a professional dilemma when he is tempted with a job in France, a place where dollar forgery is becoming more common. He ultimately turns down the offer, swayed by his growing connection with Ann and, still, by the unresolved Case 880. It is Ann who pieces together the crucial truth: Mister 880 is Skipper himself. Her moral conflict deepens as she weighs loyalty to Steve against the law, and compassion for an elderly man who used his counterfeit bills to survive.
A neighborhood boy, guided by Skipper’s playful dog, stumbles upon the dirt cellar where the dog’s digging uncovers the hidden 880s. Steve starts a series of interviews with local youngsters who had come into contact with the counterfeit bills, and this line of inquiry leads him straight to Skipper. Ann pleads for mercy for the elderly man, but Steve remains firm that counterfeiting must be punished to preserve the integrity of the nation’s currency. He can’t ignore the law, even for a man who might have acted out of desperation rather than greed.
The court process follows, and Skipper is questioned about his intentions. He admits that he bought the press and crafted the plates himself, insisting that his actions were not meant to cause significant harm. The police interrogate him, and his rationalizations reveal a nuanced belief: though his crime exists, his impact on the system was limited, given how little he passed on to any single person. A Navy veteran who volunteered in 1918 at the age of 41, Skipper receives a moment of sympathy in the form of a commendation cited by Steve. The judge weighs the circumstances and, rather than sending Skipper away for a long period, imposes a comparatively light sentence: one year and one day, with eligibility for parole after four months. A nominal fine of $1 is issued, and Steve confirms the one genuine bill among the pocketful of fakes, underscoring the careful, procedural nature of the case.
In the end, the drama settles on the tension between justice and mercy. The case reaffirms a core principle: counterfeit currency undermines trust in the monetary system, and those who manufacture it must face consequences. Yet the film leaves space for empathy toward Skipper, recognizing his wartime service and the harsh economic reality that pushed him toward illegitimate means. As the courtroom hush settles, the 880s are struck down by a combination of testimony, accountability, and a quiet, principled stance from the law — a balance that reflects the era’s moral complexities as much as its legal ones.
