|This article is about a/an episode in Taiyo Sentai Sun Vulcan.|
The Boy Detective and the Spy (少年探偵とスパイ Shōnen Tantei to Supai) is the fourth episode of Taiyo Sentai Sun Vulcan. It is notable for previewing the return of an important character which will come into fruition next episode.
A Black Magma plot to make a hidden base within society becomes spoiled when a snoopy boy accidentally discovers their set-up.
The episode begins with a Dark Q agent killing a security guard in his house and copying his face. Dark Q tricks the security agents into activating the emergency dial Central Intelligence Bureau. Sun Vulcan uncovers him and tries to stop him, but Dark Q reveals her true face and escapes. A young boy named Jiro notices Dark Q, believes her to be a burglar, and warns his parents, but they don't believe him. The Dark Q is destroyed for her failure and replaced with a more improved one. YulEagle and VulShark search for Black Magma's hideout, while Asao searches for the Dark Q. He asks Jiro's parents and they tell him that a man and a baby moved in next door. Asao investigates the neighbor's house, but is scared away by a dog. Meanwhile, Black Magma creates the Bird Monger to destroy the Sun Vulcan Robo. The Zero Girls begin construction on an underground fort. Jiro and 2 of his friends break into the neighbor's house, but the two friends quickly to trouble. Jiro finds a baby doll and gets caught by Dark Q. Jiro escapes back home, but the Dark Q shows up as his tutor and threatens his parents to keep him quiet. Later, at the Snack Safari, Jiro's friends tell Arashiyama about the burglar, but Jiro flees, begging his friends not to say anything about it. The Sun Vulcan team breaks into the neighbors house and destroys Dark Q. VulShark finds Black Magma's teleporting room use the signal computer to find Black Magma's fort. The men use the Jaguar Vulcan to find Black Magma's fort. After defeating the Machinemen, the men try to destroy Bird with the Vucan Ball, but Bird grows bigger. The men combine the Cosmo and Bull Vulcan to create the Sun Vulcan Robo, but gun pop out of the ground and shoot at it. VulEagle activates Iron Fist Whack-A-Mole to destroy the guns. After a brief fight, the Sun Vulcan Robo destroys Bird with the Aurora Plasma Return. Hell Saturn, despite his resent failure, is not mad as he plans to resurrect Queen Hedorian from her frozen slumber. Jiro's peaceful is returned as he beats Arashiyama at a [please add name of] game and the episode ends.
- Ryuusuke Oowashi (大鷲 龍介 Ōwashi Ryūsuke): Ryūsuke Kawasaki (川崎 龍介 Kawasaki Ryūsuke)
- Kin'ya Samejima (鮫島 欣也 Samejima Kin'ya): Kin'ya Sugi (杉 欣也 Sugi Kin'ya)
- Asao Hyou (豹 朝夫 Hyō Asao): Asao Kobayashi (小林 朝夫 Kobayashi Asao)
- Daizaburo Arashiyama (嵐山大三郎 Arashiyama Daizaburō): Shin Kishida (岸田 森 Kishida Shin)
- Misa Arashiyama (嵐山美佐 Arashiyama): Yumi Nemoto (根本 由美 Nemoto Yumi)
- Jiro Sakai (坂井次郎 Sakai Jirō): Hiroki Takeda (武田弘樹 Takeda Hiroki)
- Masao Akino (秋野正男 Akino Masao): Takumi Ito (伊藤巧美 Itō Takumi)
- Mari Ogawa (小川まり Ogawa Mari): Yumi Yamaguchi (山口由美 Yamaguchi Yumi)
- CC (シーシー Shīshī, Voice): Kotoe Taichi (太地琴恵 Taichi Kotoe)
- Führer Hell Saturn (ヘルサターン総統 Heru Satān Sōtō, Voice): Shōzō Iizuka (飯塚 昭三 Iizuka Shōzō)
- Queen Hedrian (ヘドリアン女王 Hedorian Joō): Machiko Soga (曽我 町子 Soga Machiko)
- Zero One: Takako Kitagawa (北河多香子 Kitagawa Takako)
- Zero Two: Mariko Higashi (東まり子 Higashi Mariko)
- Zero Three: Yuki Udagawa (宇田川由紀 Udagawa Yuki)
- Zero Four: Toshiko Takashima (高島敏子 Takashima Toshiko)
- Sun Vulcan Robo (サンバルカンロボ San Barukan Robo, Voice): Eiji Kanie (蟹江 栄司 Kanie Eiji)
- Bird Monger (トリモンガー Tori Mongā, Voice): Teiji Ōmiya (大宮 悌二 Ōmiya Teiji)
- Dark Q: Nami Munakata (宗方 奈美 Munakata Nami)
- Matsuyoshi Sakai (坂井 松吉 Sakai Matsuyoshi): Rikiya Iwaki (岩城 力也 Iwaki Rikiya)
- Toyoko Sakai (坂井 豊子 Sakai Toyoko): Yoshiko Kakuda (角田 淑子 Kakuda Yoshiko)
- Security Guard: Eiji Karasawa (柄沢 英二 Karasawa Eiji)
- Viewership: 18.3%
Taiyou Sentai Sun Vulcan Volume 1 features episodes 1-10.