Detective Conan: The Scarlet Bullet (2021) Plot Summary Explained

A criminal group is systematically targeting CEOs of companies that sponsor the World Sports Games, first during the Boston games 15 years ago and again in Tokyo. The pattern reveals the kidnappings are not random but part of a coordinated revenge plot by someone with a personal grudge. The abductions serve as both a distraction and a way to hijack the Hyper Linear train during the opening ceremony.

Foreshadowing: The Boston kidnappings are mentioned early as past history, setting up the realization that the same scheme is repeating in Tokyo.

• executive kidnappings
• world sports games
• boston case
• tokyo case
• kidnapping pattern

Morgan Tracy, an automotive CEO kidnapped during the Boston World Sports Games 15 years ago, was shot dead by his captors while trying to escape via the Detroit People Mover. He was the third and final victim in that series, and the only one who attempted to flee, which made him the lone fatality. His murder became the critical link that allowed the FBI to connect the Boston case to the Tokyo kidnappings.

Foreshadowing: The Boston case is introduced through Morgan Tracy's death, hinting that the kidnappers are willing to kill to protect their operation.

• morgan tracy
• boston kidnapping
• detroit people mover
• escape attempt
• murder

During the dinner buffet at the WSG sponsor gathering, a sudden blackout was deliberately triggered as cover by the kidnappers. Conan later deduced that Samuel was knocked unconscious and concealed inside a food cart that was stored in a kitchen cabinet. This method allowed the perpetrators to move him out of the venue undetected during the darkness.

• samuel sebastian
• blackout
• kidnapping method
• food cart
• kitchen cabinet

John Voit, a British automobile executive invited to the Hyper Linear's inaugural trip, was identified as the next likely target because he matched the exact profile of the Boston victims, a CEO of a sponsoring company attending the World Sports Games. The FBI and Conan deduced this connection after recognizing the recurring victim pattern. Voit himself confided in Richard that he was aware he could be the next victim.

Foreshadowing: Earlier kidnappings of sponsoring CEOs establish the pattern that makes Voit's vulnerability obvious.

• john voit
• target
• automobile executive
• fbi analysis
• victim pattern

During a mandatory medical check-up for passengers before the Hyper Linear's maiden voyage, an explosion released toxic gas into the briefing room at Nagoya Airport. The gas incapacitated all the guests, allowing the kidnappers to abduct John Voit without resistance. The attack was staged to appear accidental but was actually a calculated move to set up the train hijacking.

• gas attack
• hyper linear station
• nagoya airport
• kidnapping
• explosion

Maiko Shirahato held a deep personal grudge against Alan McKenzie because of her father's wrongful conviction years earlier, when Alan was serving as FBI Director. Her father's imprisonment and subsequent death in prison drove her to orchestrate an elaborate revenge plot. She used the kidnapping scheme and the Hyper Linear hijacking as her tools of vengeance against the man she held responsible for destroying her family.

Foreshadowing: Hints about the conspiracy's personal nature emerge through Alan's connection to past FBI investigations.

• maiko shirahato
• alan mckenzie
• revenge
• wrongful conviction
• fbi director
• father

As the sabotaged Hyper Linear careened toward the WSG Stadium, Conan and his allies deployed the giant ceremonial flag that had been attached to the train for the stadium display. The flag acted as a drag mechanism, slowing the train's 1000 km/h momentum enough to reduce the severity of the crash. This improvised braking turned a decorative element into a life-saving tool.

Foreshadowing: The giant flag's presence on the train is mentioned during the pre-trip briefing, establishing it as a detail that will become critical later.

• hyper linear derailment
• giant flag
• braking mechanism
• wsg stadium
• conan

The giant flag fitted to the Hyper Linear was originally meant as a ceremonial surprise to be displayed when the train arrived at the WSG Stadium during the opening ceremony. However, it was repurposed during the climax as an improvised drag to slow the out-of-control train. This transformation from decoration to emergency brake was a key turning point in preventing mass casualties.

Foreshadowing: The flag's presence is mentioned during the pre-trip briefing as something decorative, quietly setting up its later life-saving role.

• giant flag
• hyper linear
• ceremonial display
• wsg stadium
• improvised brake

The FBI recognized that the Tokyo kidnappings closely mirrored the unsolved Boston case from 15 years earlier, both targeting CEOs of WSG-sponsoring companies during the games and using similar abduction methods. This parallel led investigators to conclude the same criminal network or someone with a personal connection to the original case was responsible. The Boston case essentially served as the blueprint for the Tokyo operation.

Foreshadowing: Samuel mentions a CEO friend who was once kidnapped while playing golf, hinting at a recurring pattern long before the Boston case is formally linked.

• boston case
• tokyo case
• fbi investigation
• connection
• kidnapping pattern

Akai used a silver bullet to incapacitate Maiko Shirahato without killing her, avoiding severe collateral damage during the standoff on the Hyper Linear. This non-lethal precision shot neutralized the immediate threat while keeping casualties to a minimum. The approach reflected the film's broader theme of achieving justice without resorting to the kind of vengeance the villain herself had pursued.

• akai
• silver bullet
• non-lethal
• maiko shirahato
• final confrontation

Maiko Shirahato was the mastermind behind the entire conspiracy, driven by her personal vendetta against Alan McKenzie for her father's wrongful conviction. She worked with at least one accomplice who helped execute the kidnappings, the gas attack, and the train hijacking. The scheme was designed to culminate in either Alan's death or his public humiliation during the WSG Opening Ceremony as her ultimate revenge.

Foreshadowing: Early FBI concerns about the kidnapping patterns hint that the crimes are tied to someone with investigative knowledge, foreshadowing an insider-related motive.

• mastermind
• conspiracy
• kidnapping
• hyper linear hijacking
• accomplice

The FBI became involved because the Tokyo kidnappings closely resembled the Boston case from 15 years ago, which had remained an unsolved case in their files. Alan McKenzie, who was FBI Director during the Boston incident and is now WSG President, personally had reasons to be concerned about the pattern repeating. The FBI's involvement brought Subaru Okiya and Akai into the investigation alongside Conan.

Foreshadowing: Alan McKenzie's introduction as a former FBI Director subtly establishes his investigative past, which becomes important once the kidnappings resume.

• fbi involvement
• boston case
• alan mckenzie
• subaru okiya
• investigation