Holidaying in Thailand at Christmas, 2004, Maria (Naomi Watts), Henry (Ewan McGregor) and their three boys are having an idyllic vacation. The audience understands, however, that the first few moments of The Impossible (12A) are but a prelude to one of the most catastrophic natural disasters of recent times. When the tsunami strikes, and a wall of water thunders through their resort, the family is ripped apart.