Accidental Heroes is a heart-stopping thriller about ordinary people who embark on a journey they will never forget. On a beautiful May morning at New York's JFK Airport, a routine plane departs for San Francisco. Security agent Bernice Adams finds a postcard of the Golden Gate Bridge, with a worrying message written on it. Who left the postcard behind, which flight is that person on, and what exactly does the message mean? Desperate to get someone to listen, she knows lives could be on the line. Initially the passengers are unsuspecting of the threat to their lives. But their suspicions grow, and soon it's clear that someone on the flight is planning something devastating. With no-one to help them, the passengers must work together to avert tragedy. As the plane bears down on its destination of San Francisco, the futures of these strangers will be changed forever by a handful of accidental heroes . . .