Carter, who awakens two months into a deadly pandemic originating from the DMZ that has already devastated US and North Korea. He who has no recollections of his past finds a mysterious device in his head, and a lethal bomb in his mouth. A voice in his ears gives him orders to avoid getting killed and he's thrown into a mysterious operation while the CIA and North Korean coup chase him close.
Along with his young son, Ji-ho, Woo-jin misses his wife Soo-a, who died after promising to return a year later with the rainy season. Miraculously, they reunite with Soo-a when the rainy season comes around, but she has no memory of her husband and son whom she dearly loved.
A small village in an island. Juyeon whose mom left her only cares about her best friend-Kyunghee. One day, a transfer student-Soyoung moves to her village and everything begins to be changed.
