Yoon Se-ri, a successful South Korean businesswoman and fashion mogul, is paragliding during a test run for a new product when a sudden gust of wind throws her off course. She lands, unconscious, in the demilitarized zone (DMZ) between North and South Korea.
Ri Jeong-hyeok, a stoic and highly decorated North Korean captain on patrol, discovers Se-ri and is initially suspicious. However, he decides to hide her and protect her identity from the authorities.