The story continues from the Japanese SIGNAL drama series. In 2021, a limousine taxi driver causes an accident on a highway, and a high-level government official dies in the accident. The cold case investigation unit, including Kento Saegusa and team leader Misaki Sakurai, have doubts about the case. Meanwhile, in 2009, administrative officers die consecutively in car accidents. The police announce these deaths as accidents. Takeshi Ōyama believes that these deaths were not the product of simple accidents. At 11:23 pm, a walkie-talkie turns on and makes a connection between the future and past. Kento Saegusa and Takeshi Ōyama face the threat of bioterrorism.
坂口健太郎
as Kento Saegusa
北村一輝
as Takeshi Ōyama
吉瀬美智子
as Misaki Sakurai
木村祐一
as Tsutomu Yamada
池田鉄洋
as Shinya Kojima
青野楓
as Rika Anzai
伊原剛志
as Junki Aoki
田中哲司
as Satoshi Yamasaki
杉本哲太
as Munehisa Mitani
鹿賀丈史
as Shinjiro Itagaki
奈緒
as Michiru Koizumi
