"Case Closed The Movie: The Time Bombed Skyscraper" is the first feature film in the "Case Closed" franchise, based on the popular detective manga and anime series. The story centers on Conan Edogawa, a teenage detective trapped in a child's body, as he faces a high-stakes challenge involving a series of bomb threats targeting a newly constructed skyscraper in Tokyo. The narrative begins when a mysterious bomber sends a cryptic message to Conan, threatening to detonate explosives unless specific demands are met. The bomber's motives are tied to a personal vendetta, and the threats escalate as Conan races against time to decipher the clues and prevent catastrophe.

The skyscraper, owned by a prominent businessman, becomes the focal point of the investigation. Conan, along with his allies, including his childhood friend Ran Mouri and her father, private detective Kogoro Mouri, must navigate a web of puzzles and red herrings. The bomber's messages are laced with riddles, requiring Conan to rely on his sharp intellect and deductive skills to uncover the truth. As the deadline approaches, tensions rise, and the stakes become increasingly personal when Ran is placed in direct danger. The bomber's connection to a past incident involving Kogoro adds a layer of complexity to the case, forcing Conan to confront the consequences of his mentor's actions.

The film balances suspense and action, with Conan engaging in a high-stakes game of wits against the bomber. The narrative explores themes of justice, revenge, and the moral dilemmas faced by those in positions of authority. The climax unfolds in a tense confrontation within the skyscraper, where Conan must outsmart the bomber and defuse the situation before time runs out. The resolution ties together the film's central mystery while leaving room for reflection on the broader implications of the characters' choices. The film remains faithful to the series' core elements, emphasizing Conan's brilliance as a detective and his unwavering commitment to protecting those he cares about.