The Dragon's Triangle sits in the Philippine Sea south of Japan, an area Japanese sailors have long treated with the same wariness Western sailors reserve for the Bermuda Triangle. This episode of UFO Files lays out the case for a Pacific counterpart to that Atlantic mystery: ships and aircraft that went missing without wreckage or distress calls, and decades of maritime lore built around the losses. Interviews with researchers and historical footage carry the investigation, alongside reenactments of the disappearances themselves. The film sets out the competing explanations on offer, from undersea volcanic activity and rogue currents to the UFO theories the series is built around, without settling firmly on one. It also traces how the region's reputation grew as much from Japanese folklore and superstition as from any documented incident, which is part of what keeps the Dragon's Triangle a live subject for shows like this one rather than a closed case.