Jeong Su-been

A gym teacher and his female student look for her missing friend. But as they investigate, they find that her disappearance is a part of a larger conspiracy.

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.

Six years after the Hawaii airplane hijacking, Mi-yeong finds herself struggling with her rebellious teenage daughter, Nari, and her unemployed husband, Seok-hwan. When Hyun-min, a flight attendant she met during the hijacking, invites her family to his wedding aboard a luxury cruise ship, Mi-yeong eagerly proposes a family holiday. Met with indifference from her husband and daughter, she decides to embark alone, joining Hyun-min's family and Ji-hoon, a charming magician. However, on the eve of the wedding, the celebration turns deadly when armed assailants seize the ship. After Seok-hwan and Nari are kidnapped and brought aboard, Mi-yeong discovers that she is the target of a much larger plot.

A working class family wins a free vacation to Hawaii. But when their plane takes flight, it gets hijacked by terrorists. To save her family and the other passengers, the wife must reveal her secret past and fight back.