A high school science teacher is the butt of all his students' jokes, until their bus is hijacked on a school trip. But something more sinister lurks beneath the surface: he's building an atomic bomb in his apartment.

A police procedural surrounding murder at a bookstore and the private lives of the cops trying to solve the case.

Detective Ukyo Sugishita confronts crime on the basis of his own convictions. He has a partner that works for him in the Special Task Unit. For the first 7 seasons, Ukyo’s first partner is Kaoru Kameyama. He is a good-natured, hot-tempered, straightforward and somewhat scattered detective. Beginning in Season 8, Takeru Kanbe replaces Kameyama. Contrary to his predecessor, Takeru is a lanky, cool, conceited and confident detective. From Season 11 to Season 13, Ukyo’s partner is a young detective Toru Kai. Toru is a son of Deputy Director-General of The National Police Agency. But he became a detective by his own effort. And starting with Season 14, Ukyo’s current partner is Wataru Kaburagi, an elite bureaucrat who came to the Metropolitan Police Department on temporary assignment. As the first partner without any career of a police officer, he will face challenging cases together with Ukyo.

A mysterious international crime organization makes a demand of 900 million yen from the Japanese government for the release of hostages. The group then targets a victory parade of a world sports game to commit indiscriminate terror.

Global South guerrillas hijack the Japanese oil tanker Arabian Light, threatening to blow it up in Tokyo Bay, unless the Cabinet complies with an economically devastating ultimatum.

Deep in the mountains of feudal Japan, a group of children endure cruel and unorthodox training in order to become the Shogunate's most secret and deadly weapons - the Demon Spies! Their true identities are hidden - even from each other. Behind their demon masks, they are educated in the deadly arts of infiltration, espionage, assassination - and seduction! If they survive to become strong enough to kill their teachers, they will become - the Demon Spies! Sent on a suicide mission to uncover a deadly conspiracy, five inexperienced Demon Spies must infiltrate a powerful fief, discover the location of its secret arsenal, and destroy it. But Lord Shogen, the Demon Hunter, plans to brutally interrogate, ingeniously torture, and cruelly execute - the Demon Spies!