A futuristic film about a crisis near the brink of war after three leaders are kidnapped by a North Korean nuclear submarine in a coup d’état during a summit between the two Koreas and the United States.

In the early 1980s, South Korea is torn by student protests over the lack of representation in the government. Song Woo-Seok is a successful attorney in Busan specializing in tax law. His views regarding civil liberties are changed by student activist Park Jin-woo. When Jin-Woo is brutally tortured and put on trial for his activism, Woo-seok decides to defend Jin-woo as his client.

A former agent from the North Korean intelligence and a senior member of the South Korean security services conduct a secret mission to prevent the breakout of a nuclear war on the Korean Peninsula.