Episode 687

| Chronology | | |
| --- | --- | --- |
| ‹  [A Car Carrying a Time Bomb](/wiki/A_Car_Carrying_a_Time_Bomb "A Car Carrying a Time Bomb") | [**List of Episodes**](/wiki/Anime#Episodes "Anime") | [Detective Takagi Finds 30 Million Yen](/wiki/Detective_Takagi_Finds_30_Million_Yen "Detective Takagi Finds 30 Million Yen")  › |
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| **Episode 687   (Int. Episode 739)** | |
|  | |
| **Information** | |
| Title: | The Unsolvable Ice Trap |
| Japanese title: | 誰にもとけない氷の罠   (Darenimo Tokenai Kōri no Wana) |
| Original airdate: | February 16, 2013   December 20, 2025 **(Remastered version)**[](#cite_note-fremr-1) |
| Broadcast rating: | 10.4% |
| Remastered rating: | 6.4% |
| Filler case: | #204 |
| Season: | (/wiki/Season_18 "Season 18") |
| Manga source: | **TV Original** |
| **Case** | |
| Cast: | [Conan Edogawa](/wiki/Conan_Edogawa "Conan Edogawa")   [Ai Haibara](/wiki/Ai_Haibara "Ai Haibara")   [Hiroshi Agasa](/wiki/Hiroshi_Agasa "Hiroshi Agasa")   [Detective Boys](/wiki/Detective_Boys "Detective Boys")   [Gomera](/wiki/Gomera "Gomera") |
| Case solved by: | [Hiroshi Agasa](/wiki/Hiroshi_Agasa "Hiroshi Agasa") (via [Conan](/wiki/Conan_Edogawa "Conan Edogawa")) |
| Next Conan's Hint: | Will-o'-the-wisp   Ice hote; **(Remastered version)** |
| **Staff** | |
| Director: | [Yasuichiro Yamamoto](/wiki/Yasuichiro_Yamamoto "Yasuichiro Yamamoto") |
| Screenplay: | [Asami Ishikawa](/wiki/Asami_Ishikawa "Asami Ishikawa") |
| Storyboard: | [Masuku Taiga](/wiki/Masuku_Taiga "Masuku Taiga") |
| Episode director: | [Shigeru Yamazaki](/wiki/Shigeru_Yamazaki "Shigeru Yamazaki") |
| Animation director: | [Akio Kawamura](/wiki/Akio_Kawamura "Akio Kawamura")   [Masanori Hashimoto](/wiki/Masanori_Hashimoto "Masanori Hashimoto") |
| Character design: | [Masatomo Sudo](/wiki/Masatomo_Sudo "Masatomo Sudo")   [Kumiko Shishido](/wiki/Kumiko_Shishido "Kumiko Shishido") (design works) |
| Production cooperation: | [BIG BANG](/wiki/BIG_BANG "BIG BANG") |
| | Voice Cast: | | --- | | [Minami Takayama](/wiki/Minami_Takayama "Minami Takayama") as [Conan Edogawa](/wiki/Conan_Edogawa "Conan Edogawa")   [Kenichi Ogata](/wiki/Kenichi_Ogata "Kenichi Ogata") as [Hiroshi Agasa](/wiki/Hiroshi_Agasa "Hiroshi Agasa")   [Megumi Hayashibara](/wiki/Megumi_Hayashibara "Megumi Hayashibara") as [Ai Haibara](/wiki/Ai_Haibara "Ai Haibara")   [Yukiko Iwai](/wiki/Yukiko_Iwai "Yukiko Iwai") as [Ayumi Yoshida](/wiki/Ayumi_Yoshida "Ayumi Yoshida")   [Wataru Takagi](/wiki/Wataru_Takagi_(voice_actor) "Wataru Takagi (voice actor)") as [Genta Kojima](/wiki/Genta_Kojima "Genta Kojima")   [Ikue Otani](/wiki/Ikue_Otani "Ikue Otani") as [Mitsuhiko Tsuburaya](/wiki/Mitsuhiko_Tsuburaya "Mitsuhiko Tsuburaya")   [Takeharu Onishi](/wiki/index.php?title=Takeharu_Onishi&action=edit&redlink=1 "Takeharu Onishi (page does not exist)") as [Akira Haraguchi](/wiki/Minor_law_enforcement#Akira_Haraguchi "Minor law enforcement")   [Akira Sasanuma](/wiki/index.php?title=Akira_Sasanuma&action=edit&redlink=1 "Akira Sasanuma (page does not exist)") as Forensics officer   [Yasuo Muramatsu](/wiki/index.php?title=Yasuo_Muramatsu&action=edit&redlink=1 "Yasuo Muramatsu (page does not exist)") as Tarou Yamaguchi   [Tokuyoshi Kawashima](/wiki/index.php?title=Tokuyoshi_Kawashima&action=edit&redlink=1 "Tokuyoshi Kawashima (page does not exist)") as Kazuyuki Ogi   [Hitomi Nabatame](/wiki/index.php?title=Hitomi_Nabatame&action=edit&redlink=1 "Hitomi Nabatame (page does not exist)") as Mika Itakura   [Kosuke Meguro](/wiki/index.php?title=Kosuke_Meguro&action=edit&redlink=1 "Kosuke Meguro (page does not exist)") as Tetsuya Shiota | | |
| **Music** | |
| Opening song: | [TRY AGAIN](/wiki/TRY_AGAIN "TRY AGAIN") |
| Closing song: | [Hitomi no Melody](/wiki/Hitomi_no_Melody "Hitomi no Melody") |
***The Unsolvable Ice Trap*** (誰にもとけない氷の罠 ,*Darenimo Tokenai Kōri no Wana*[?](/wiki/Help:Japanese "Help:Japanese")) is the 687th episode of *[Detective Conan](/wiki/Detective_Conan "Detective Conan")* [anime](/wiki/Anime "Anime").
## Contents
* [1 Cast](#Cast)
* [2 Gadgets](#Gadgets)
* [3 Case](#Case)
+ [3.1 Situation](#Situation)
+ [3.2 People](#People)
+ [3.3 Resolution](#Resolution)
* [4 Trivia](#Trivia)
* [5 BGM listing](#BGM_listing)
* [6 Gallery](#Gallery)
* [7 In other languages](#In_other_languages)
* [8 References](#References)
* [9 See also](#See_also)