Luke is flying to France where his wife and son are planning to live after the marriage had failed.
Mr Smith, a flight attendant, helps an eldery woman named Anne to prevent her from taking her own life. Also, a young boy who lost his leg when he was younger believes he can hear his dog, Willy, barking, they find out the dog has been placed into the wrong compartment and if the plane doesn't turn around the dog will die. Luke has to make the decision whether the dog and his family are really the most important things in his life.
