Today is the anniversary of the death of Takagi's mentor, Wataru Date. Detective Takagi finishes work early but no one, including Sato, knows where he disappeared to. The Detective Boys are waiting outside the police station for a safety pamphlet photoshoot when a stranger asks them to deliver a parcel to Takagi's girlfriend. The parcel contains a tablet broadcasting a tied-up Takagi in real-time. They have about 24 hours to figure out where he is before the bomb explodes.

After discussing the suicide cases with Sato, Conan concludes that Takagi was looking for his mentor's girlfriend who never got news about his death. She committed suicide believing Date left her. The police find the girlfriend's old English teacher who mixed up the two Watarus and blamed Takagi for her death. Before Sato can get any information about Takagi's whereabouts, the old man succumbs to the poison wine he was drinking.

With the kidnapper dead, the police have to rely on the video of Takagi to figure out where he is. Conan recognizes the Western Jackdaw that is only found in Hokkaido and narrows down the search area. Every four story building is searched, but Takagi remains missing. After reviewing the footage, Conan realizes that the kidnapper placed a mirror underneath Takagi to give the illusion of a tall building.

The investigation into the murder of a publishing company president brings Ai into close proximity to Subaru Okiya, whom she suspects of being part of the Black Organization.

Conan and Ai bump into Takagi coming out of a stakeout. He still has nightmares about falling off the plank he was tied to (see previous episode). A woman screams nearby and they discover the body of a publishing company president. 3 people were contacted by the victim right before his deadly fall. They all claim to have been alone in their apartment at the time. Takagi and Conan examine each apartment before the suspects can change anything. The first suspect shows the beer he recently poured .

A bomb detonates and kills an unknown man. On the other side of town, Ayumi's neighbour Mao runs to the Detective Boys for help with her runaway dog, Candy. While searching one of the nearby delivery trucks, they bump into Takagi and Chiba working a serial bombing case. The police locate the last bomb in a delivery truck, but it is then hijacked by two robbers. Candy happens to be in that truck. The police leak fake checkpoints and corner the robbers.

Professor Agasa take the Detective Boys to visit an ice village. The mayor and his secretary boast about cancelling the winter festival to build a resort to bring in more income. The group stays overnight in the ice hotel. The next morning, the mayor staying in another part of the ice hotel is found strangulated in his bed. Professor Agasa reveals the culprit to be the ice sculptor using an ice melting trick to murder the mayor without leaving any evidence behind.

During his morning jog, Takagi comes upon a gym bag filled with 30 million yen. The owner of the bag, an organic grocery store manager, claims that he dropped it the previous night. When the newspaper man tells Conan that the bag wasn't there earlier that morning, he suspects that the grocer placed the bag for someone specific. Takagi questions the woman who was with him when he found the bag, but she doesn't know the grocer. The woman's partner then runs after Takagi thinking he was...

3 months ago, 24-year-old Kaoru Sasamori, who hired Kogoro to investigate her boyfriend, fell down the stairs and died. At her funeral, Kaoru's brother accused her boyfriend Tsuge of pushing her down the stairs. In present day, Kogoro is summoned by Tsuge with the message, "Come and I'll tell you about her murderer". Kaoru's brother, her best friend Kazumi, and Tsuge's manager all show up at the same time. They find Tsuge bludgeoned to death in his workshop.

Conan, Ran, Sonoko, Masumi and Subaru examine two deaths from years ago where the symbol for "death" was found near the bodies and try to figure why Yusaku Kudo, who investigated the deaths, concluded that they weren't murders.

In a phone call with Ran as Shinichi, Conan hears that Subaru compared him to a ninja. Reminded of the sanada flag with its six coins, Conan solves the mystery.

Kogoro receives a call from an unknown person to follow instructions for delivering the ransom money worth 24 million yen. Conan is on the skateboard following the boat. After the boat goes through under the bridges, the briefcase went missing on top of the boat.

The next day, Ran and Conan arrived at Nishizawa's apartment and found Nishizawa drowned to death in the bathroom. At the Sumida river, people were amazed that there's lot of money floating in the water.

The chocolate flavored sweets have gone missing in every branch shop around Kyoto. Conan, Ran, Sonoko, Kogoro and the Detective Boys are on the move to find the missing sweets.

A murdered man was found in a barrel warehouse located in a vineyard. Conan is going to find out the murderer who murdered the man.