Japan’s Strangest Unsolved Mystery

Use code NEXPO at to get an exclusive 60% off an annual Incogni plan. 1989: a mysterious SOS sign beckons from the Japanese wilderness. The mystery of who built it, however, remains unsolved to this day. 💾Sources: 🎶Soundtrack: 🖤Support the channel: 📲Stay updated: 📧Submit a Mystery: NightmareExpo@ CHAPTERS: 0:00 - Searching for the Two 3:05 - Oddly Straightforward? 8:39 - Something is Wrong 10:18 - Intermission 11:52 - A Mystery of Extraordinary Circumstance 15:33 - The Discovery in the Woods 21:05 - The Questions that Remain 23:40 - Decoding the SOS Sign Incident 29:45 - Japan’s Strangest Unsolved Mystery MORE ON THE SOS SIGN INCIDENT: Barely Sociable: MrBallen: The following content is for educational, documentary, and artistic purposes only.