Eddie Hawkins, known as Hawk, is a skilled cat burglar with a unique talent for outsmarting cutting-edge security systems using just his intellect and a knack for harmony. After serving time in prison, he emerges to the brisk winds of the Hudson River, which whisper stories of the city’s shady underbelly. Upon starting his new life on parole, he reconnects with his former partner, Tommy "Five-Tone" Messina, over a warm cup of cappuccino. However, their peaceful morning is soon shattered by relentless blackmailers intent on exploiting Hawk's talents.
A minor Mafia faction, Hawk's own parole officer, and even the CIA all converge to pressure him into performing daring art heists. Despite the mounting pressure, Hawk's determination to escape the confines of his past remains strong, fueled by his singular dream of enjoying that perfect cappuccino, a simple pleasure persistently sabotaged by those around him.
As the tension escalates, Hawk ultimately succumbs to their demands and meticulously plots his next moves. Unbeknownst to him, the true orchestrators behind his blackmail are the ambitious Darwin and Minerva Mayflower, the formidable duo running Mayflower Industries, a multinational corporation with grand plans. Their objective? To capture the ancient technology of Leonardo da Vinci's La Macchina dell'Oro, a legendary machine capable of turning lead into gold by retrieving essential crystals hidden within renowned artworks from the Renaissance master.
Navigating this intricate web of deceit is Sister Anna Baragli, an agent working for a covert Vatican counter-espionage group. She collaborates with the CIA, but her motives are duplicitous; beyond guiding Hawk's mission in Rome, she seeks to thwart it right at the heart of St. Peter's Basilica.
As chaos ensues, Hawk makes bold moves like blowing up an auctioneer to cover his tracks, narrowly escaping the clutches of the Mafia in a high-speed ambulance chase. His path brings him in contact with the CIA director, George Kaplan, and a quirky group of agents named after candy bars — Snickers, Kit Kat, Almond Joy, and Butterfinger.
The stage is set for a thrilling game of cat and mouse as Hawk continues to execute his plans, even pilfering the prized Da Vinci Codex from another museum. A shiver of doubt crosses his mind when tasked with stealing the design of the helicopter. This hesitation proves fortuitous as Tommy Five-Tone fakes his own death, creating the perfect diversion for their escape. Yet, peace is short-lived as CIA agents soon reveal that Kaplan and his crew had previously stolen the artifact, leaving behind turmoil and confusion.
The wild chase that follows results in casualties within the CIA ranks, prompting Hawk and Tommy to chase down Kit Kat and Butterfinger, who have taken Anna to the ominous castle where the Macchina dell'Oro is being reconstructed. With tensions anew, the Mayflowers, led by Minerva, are met with fierce resistance from Hawk, Tommy, and Anna in a climactic showdown amid the castle's imposing walls.
In a moment of sacrifice, Kit Kat frees Anna, while a collision of forces takes place as Tommy battles Darwin and Alfred within a speeding limousine. Hawk finds himself pitted against George Kaplan on a rooftop, with Kaplan’s fate sealed as he plunges from the battlements, landing near the speeding limo. As the situation spirals, Alfred plants a bomb, while Darwin manages to escape with Minerva, leaving Tommy trapped inside.
As Hawk is coerced into assembling the crystal needed for the Mayflowers’ machine, he cunningly omits a vital part, ensuring it malfunctions dramatically, leading to the Mayflowers’ fiery downfall. In a fierce culmination, Hawk faces off against Alfred, claiming not only victory but also making use of the very blades meant for him.
As tranquility finally descends, Hawk and Anna make their break using da Vinci's legendary flying machine. They rendezvous with Tommy at a cozy café, where he surprisingly emerges unscathed from the explosive chaos, thanks to a stroke of luck involving airbags and a sprinkler system.
With the world safeguarded and da Vinci’s mysteries kept secure, Hawk finally relishes triumph, indulging in a well-deserved cappuccino and savoring the sweet taste of freedom.
