Ram, a CIA agent, returns to Thailand on a mission to dismantle a mafia group. Reluctantly, he complies with his Captain's assignment. Mae, an orphan turned flight attendant, is helpful yet stubborn in seeking the truth. During a flight to Korea, a mix-up places a spying pen in Mae's possession, leading to an unexpected journey for Ram, who must retrieve it. As their relationship evolves from bickering and misunderstandings, they eventually confess their love for one another.