Movie follows the activities of the Heroic Corps, an anti-Japanese independence organization that existed under the Japanese colonial period in South Korea. The group used violent means to achieve Korean independence.
Wow Gong Yoo is on a roll! Train to Busan was a record-shattering blockbuster and this movie is on it's way to become a record-shattering blockbuster. And his new drama looks extremely promising! The writer of Secret Garden and DOTS and a talented cast, so it'll definitely get good response.