Ram, a CIA agent, is assigned to infiltrate a mafia group in Thailand despite his reluctance, due to his personal grief over his brother Luks' death, which he blames on his stepmother. Mae, a stubborn orphan and new flight attendant, accidentally ends up with a pen meant for Ram’s mission when it’s mistakenly swapped during a flight to Korea. As Ram trails Mae and her friend Lum around Korea to retrieve the
