 Sook Hee (aka Miya) is a North Korean agent who has infiltrated into South Korea in order to steal US military secrets. She is hired as a nanny in the family of US Colonel Greg Finn, who works as an intelligence officer with the US forces in South Korea. Col. Finn s teenage son Chris and Miya fall in love with each other but Miya s North Korean superiors demand that she completes her mission.