Gi-yeong is a North Korean spy who has been living among his enemies for 21 years. Suddenly he receives a mysterious email, a directive seemingly from the home office. He has one day to return to headquarters, but he hasn’t heard from anyone in over 10 years. Why is he being called back now? Is he returning to receive new orders or to be executed for a lack of diligence? Has someone in the South discovered his secret identity? Is this a trap?