Akechi, stunned to learn that Nakamura was brainwashed by Twenty Faces, ends up captured by the special security force. Meanwhile, at the New Tokyo World Fair, the plane built to carry people to the stratosphere is involved in a catastrophic crash. The Boy Detectives' Club is at a loss, and their attempts to reach Akechi fail. Then, suddenly, Twenty Faces appears on their monitor... (thetvdb.com)