Overview

Korea has been taken over by aliens, and three agents from two different timelines spearhead the war against them. An unknown monster strikes them! One day, a single scream in an urgent phone call was heard.

Genres

Cast

Kim Sang-joong

Park Jung-bong

Kim Kang-woo

Kim Hyo-chan

Joo Won

Seo Seo-woong

Park Choong-seon

President

Kwon Eun-soo

Support Team

Lee You-young

Mae-goo