When a South Korean commander is killed by a friendly bullet during a cease fire, investigator Kang Eun-Pyo's trail leads him to a remote hill region. Ko Soo, Shin Ha-gyun, Lee Da-wit, Lee Je-hoon, Kim Ok-vin, Ko Chang-seok, Ryu Seung-ryong, Jeong In-gi, Cho Jin-woong, Ryu Seung-soo, Ha-kyun Shin, Soo Go, Seung-su Ryu, Chang-Seok Ko Added on Amazon Prime 2023-04-06. Youtube Trailer