The film opens at a high-stakes New York art auction where eccentric billionaire Jirokichi Suzuki aggressively outbids his eternal rival, the phantom thief Kaito Kid, purchasing Vincent van Gogh’s masterpiece "Sunflowers" for a staggering 300 million dollars. Jirokichi’s grand ambition is to gather all seven known versions of the "Sunflowers" series from around the globe for a monumental, heavily guarded exhibition in a specialized Japanese museum known as the "Lake Sunflower." To ensure the safety of the priceless artwork during transit, he hires a specialized team of bodyguards, including Kogoro Mouri and young Conan Edogawa.However, chaos ensues during the initial flight transporting the painting back to Japan. Kaito Kid makes a theatrical appearance, hijacking the plane and seemingly threatening the safety of the priceless art and the passengers. Conan springs into action, using his high-tech gadgets to track and thwart the thief, but Kid manages to escape into the skies. This encounter leaves Conan deeply unsettled; Kid’s actions are uncharacteristically destructive, hinting at a hidden agenda rather than his usual gentlemanly heists.As the preparations for the exhibition continue, a series of mysterious explosions plague the city, accompanied by cryptic warning notes signed by Kaito Kid. The public and local authorities panic, suspecting the thief is planning to burn the paintings. Yet, Conan refuses to accept this narrative, deducing that an imposter is exploiting Kid’s notorious name as a smokescreen for a far deadlier plot. As the tension mounts, Jirokichi stubbornly refuses to shut down the exhibition, driven by his stubborn pride and desire to fulfill a lifelong dream.The climax erupts on the opening day at the "Lake Sunflower" museum. A massive bomb detonates, trapping Conan, Ran, and
museum curator Keiko inside the burning facility as water rushes in and flames threaten to engulf the vulnerable Van Gogh paintings. Amid the blazing inferno, Conan uses his brilliant intellect to coordinate a desperate rescue. Simultaneously, the real Kaito Kid reappears, not as an adversary, but to assist Conan in neutralizing the structural collapse and securing the paintings from
total destruction.In the harrowing aftermath, the true mastermind is unmasked: an embittered art restorer driven by a twisted obsession with avenging her grandfather's lost legacy tied to the vanished eighth sunflower painting. With the art saved and the villain apprehended, the mystery of Kid's erratic behavior is resolved, leaving Conan to reflect on the thin line between passion and madness in the art world.