The BEST episodes of MIU404

Every episode of MIU404 ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of MIU404!

The No. 4 Mobile Investigation Unit was quickly pieced together as part of reform efforts to overhaul the police organization. There, a wild maverick of a cop, Ibuki, gets paired with a serenely composed partner, Shima. Their role is to be on call 24 hours to fill in gaps in police shifts by investigative Units 1 to 3, to be the first investigators on crime scene and to risk their lives for a perfect criminal apprehension rate. In an increasingly morally relativistic world, questions such as “What is real justice” are posed in thrillingly fast-paced and comical whodunit fare with each episode a complete story.

Last Updated: 2/23/2024Network: TBS (JP)Status: Ended
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Episode 1
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#1 - Episode 1

Season 1 - Episode 1 - Aired 6/26/2020

Police officers Ai Ibuki and Kazumi Shima are buddies in a new Mobile Investigative Unit known as “MIU404” whose mission is to solve crimes within 24 hours. Their only weapon is amazing speed.

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Episode 2
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#2 - Episode 2

Season 1 - Episode 2 - Aired 7/3/2020

Ibuki and Shima are on patrol when Ibuki spots a suspicious vehicle. Just then, they receive an alert about an armed murder suspect whose description matches the driver of the vehicle. Suspecting a hostage scenario, they set off in pursuit. But the chase takes an unexpected turn when the supposed hostages turn out not to be what they seem.

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Episode 3
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#3 - Episode 3

Season 1 - Episode 3 - Aired 7/10/2020

Ibuki and Shima are assigned to a case involving a series of false police emergency calls perpetrated by a group of pranksters imitating the rules of online video games. If the “player” succeeds in escaping from the police, then they “win” the game. Declaring “Nobody outruns me,” Ibuki is determined to catch the miscreants, but has he got what it takes?

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Episode 4
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#4 - Episode 4

Season 1 - Episode 4 - Aired 7/17/2020

Ibuki and Shima respond to a report of a shooting only to find that both the victim, a former bar hostess, and her assailant have already fled the scene. Their enquiries reveal that the victim received first aid at a local pharmacy for a bullet wound and then disappeared carrying a suitcase full of cash. After receiving a tip from their boss that the woman was previously involved in an underground casino case, Ibuki and Shima set off in hot pursuit...

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Episode 5
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#5 - Episode 5

Season 1 - Episode 5 - Aired 7/24/2020

When a number of convenience stores in one area of Tokyo are robbed on the same night, Ibuki and Shima go undercover as employees at a nearby store to try to catch the perpetrators. It’s not long before the thieves strike again, and together the police succeed in rounding up almost the entire gang. They turn out to be mostly foreign workers brought to Japan for technical training who have been forced into low-wage jobs. But while investigating the case, Ibuki discovers there’s much more to it than meets the eye…

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Episode 6
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#6 - Episode 6

Season 1 - Episode 6 - Aired 7/31/2020

Ibuki decides to ask Shima about a rumor going around that he killed his former partner, Kosaka, but Shima refuses to talk about it. Troubled, Ibuki approaches Kokonoe, who tells him that Shima’s former partner died under suspicious circumstances. Enlisting Kokonoe’s help, Ibuki decides to reopen an investigation into Kosaka’s death and its possible connection to a serial poisoning case that occurred on the same day.

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Episode 7
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#7 - Episode 7

Season 1 - Episode 7 - Aired 8/7/2020

Ibuki and Shima rush to investigate a report of a body found in a cargo container rented out for storage. They arrive on the scene to discover the dead man, a peaceful expression on his face, covered in a mound of cat litter. All indications point to suicide, but Ibuki and Shima, suspecting foul play, begin questioning the users of the other storage containers. One of them, an old man living illegally in his container, tells them a surprising fact about the dead man.

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Episode 8
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#8 - Episode 8

Season 1 - Episode 8 - Aired 8/14/2020

Ibuki and Shima are called in to investigate a dead body found in the mountains. From the distinctive wounds and a cryptic note left at the crime scene, they conclude it must be the latest in a series of bizarre unsolved murders. But the case is assigned to another unit and Ibuki and Shima are relegated to a supporting role. Then they learn that the dead man had a prior criminal record and that Inspector Gamagori, Ibuki’s mentor, was responsible for his first conviction. They go to see Gamagori, who provides them with information that they think may lead them to the murderer…

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Episode 9
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#9 - Episode 9

Season 1 - Episode 9 - Aired 8/21/2020

Ibuki and Shima’s boss, Kikyo, discovers that her home has been bugged and they must find out who’s responsible. Their investigation leads them to an organized criminal gang with ties to the owner of an illegal gambling operation who’s on the run from the police. The police decide to launch simultaneous raids on all the gang members’ known locations. Meanwhile, Ibuki and Shima learn that a high school student wanted in connection with making false police reports in a separate matter is also involved in the case.

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Episode 10
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#10 - Episode 10

Season 1 - Episode 10 - Aired 8/28/2020

Before Ibuki and Shima are able to track Etori down and arrest him, he is killed by a drone deployed with an explosive device. A post-mortem reveals that Etori was in fact none other than the chief suspect in an unsolved five-year-old murder case. But why did someone want him dead? They later learn that Etori was acting on directives from a mysterious individual, whom Shima identifies as a young IT specialist by the name of Kusumi. It will take the resources of the entire MIU 404 team to crack this perplexing and dangerous case!

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Episode 11
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#11 - Episode 11

Season 1 - Episode 11 - Aired 9/4/2020

Jimba is taken to hospital after being hit by a truck. But the ambulance transporting him is delayed by fake news of a terrorist attack. Jimba’s colleagues are tormented by their own helplessness: Shima blames himself for not realizing the news was fake. Kokonoe regrets not being with his partner at the time. And Kikyo, their chief, accepts ultimate responsibility. Meanwhile, Kusumi, the shadowy figure behind the crimes, is still on the loose. Will they be able to bring him to justice before MIU-4 is disbanded?

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