Tenkû no hachi

A helicopter, operated remotely, is hovering in the sky over a nuclear power plant. The power company, government and media all receive a fax that if the nuclear power plant is not taken offline within 8 hours the helicopter will be dropped. Also, a young child is in the helicopter. Yuhara, helicopter designer, and Mishima, nuclear power engineer, work frantically to save the child and find the criminal.