Case Closed : Season 1

Conan, Ran, and Kogoro are riding a bonnet bus, driven by bus operator Mamoru Kajita and guided by Touko Natsume, through the mountains. On the bus already is the president of the Kagekura youth club, Takurou Yabe. The bus stops to pick up other travelers including Souchiki Okumura, who forces Kogoro out of his seat. He argues with Yabe then drinks from his water bottle and collapses dead from poison.

Ran reveals that the person who ran past her after Funaki was killed was Yabe. Kogoro catches him but Yabe maintains his innocence.

Mouri, Ran, and Conan are staying at a hotel where they meet the twins from the case of the cursed mask. Later, an actress comes and causes trouble. The next day, she is found hanged in her room.

Conan notices that this is not a suicide but a murder. He later proves that the culprit hang-glided to the hotel and went back by stowing in the trunk of a car.

A serial arsonist sets huge fires across the city and Takagi and Miwako with the Detective Boys are out to solve it.

After Ai reveals the pattern of the arsonist attack, Ayumi, Genta, and Mitsuhiko run into the arsonist who attempts to kill them.

Kogoro is carried by Ran and accompanied by Conan one night picking him up from a bar. While walking they witness a fight in an apartment. The next day a murder occurs. One of the man who's heard arguing comes to Moore for help to prove his innocence. The man has made good suggestions on where to find evidence which are in fact too good.

Kogoro, Ran, and Conan are invited for a ceremony for a ropeway which is built through a giant Goddess Statue on the mountains by Doumouto Guze. They learn that there is a rumour about a curse by the goddess' anger and Kogoro was invited to disprove it. After riding through the ropeway on the opening day, Doumouto, who has disappeared from the ropeway cart, is later found dead on the goddess' hand.

The Detective Boys excluding Ai, are traveling through a winding path on Mt Ryushin. There they witness a derailed car fall off the mountain. The man has died and through the evidence, Conan concludes another car rammed into that car.

Kogoro, Ran, and Conan came as the substitutes for Serena and her father, the Suzuki president, and decided to attend a tea meeting at the Aonogi house. At the backyard of the mansion, there was a pond that shined in five colors. And there was a bridge which led to the tea room. While they were enjoying the pond’s colors something unusual happened… The headmaster died in the tea room, the same way as the legend.

Conan searches for clues to who murdered the Headmaster busily and finally figures out the trick that was used.

The Detective Boys decided to go mushroom picking in the mountains. And during it, Genta got lost in the hunting area.

Ai deduces that if they reveal themselves, the hunter trying to get rid of them will shoot them and say that he thought they were bears. So Ai and Mitsuhiko leave a clue for Conan in the form of different types of mushrooms that tells him who the killer is.

Kogoro, Ran, and Conan are attending a dolphin show when a murder occurs in the hotel.

While Kogoro, Ran, and Conan are driving near the ocean, their car breaks down, prompting them to ask for help at a house which belongs to famous lawyer Kensuke Tachibana. There, they meet secretary Yuuichi Sakuraba, his caretaker Yaeko Kamei, his wife Yuki Tachibana, his office's accountant Noriko Sugimura, and lawyer Fumio Fujisawa. As the day progresses, Kensuke explains to Kogoro that he’s been receiving threatening letters from someone with the initials “T.K.”

Conan believes that Kumada was met with foul play. Conan puts Kogoro to sleep, deducing that the killer drugged Kensuke while he was out with Kumada.

The police inform Kogoro about a serial offender attacking women wearing ganguro makeup. According to the victims’ testimony, their attacker stood at 150 centimeters tall. Kogoro mentions a similar case 20 years ago where female high school students were run over, shocking Megure.

Megure reveals a case in the past which is why he was so anxious.

The Phantom Thief Kid stands on top of a building with his butler. He discusses the time he was almost caught by a famous Detective in the East, Shinichi Kudo. He plans to "steal" the clock tower. Although, he leaves it standing with a code upon its hands, saying "I will not give this clock to anyone".

Conan becomes suspicious of Kogoro's latest client, a woman looking for an old lover, even more so when a murdered man is found clutching a photo of her.

After a thorough investigation, Conan tranquilizes Kogoro and reveals the culprit.

Conan, along with Heiji, Ran, and Kazuha travel the Isle of Mermaids looking for Saori Kadowaki, who had sent a letter to Heiji asking him to save her from being killed by a mermaid.

Conan and Heiji investigate Naoko's brutal murder and discover a trail of fish scales that suggest Naoko's killer came from the sea.

With Kogoro stunned, Conan clears the suspects who were accused of murder, then explains that each victim was called out by the person they trusted and was lured with the promise of a personal gain before being murdered, and reveals the killer.

A boy named Rintaro asks the Detective Boys to investigate on a strange man named Yuuji Kamekura. Rintaro explains that Yuuji appeared one day at his family restaurant claiming he owes Rintaro's grandfather a favor and would like to work at the restaurant. Yuuji soon after begins living with the family and helps them improve the restaurant to the point the family are constantly busy with the customers.