In 2013 American holiday makers are travelling home from Montego Bay, Jamaica.  The plane is oversubscribed and passengers are asked to volunteer to take a later flight number 828.  There are over two hundred 828 passengers and the flight is progressing well when it experiences a violent lightning storm that lasts just a few minutes.  The flight then continues on to New York.  On approaching the runway the pilots contact air traffic control requesting landing permission.  After a strange conversation during which the pilot is asked to repeat the flight number and origin several times, the aeroplane is diverted to another airport.  The passengers disembark and are greeted by police and FBI agents.  They are then told the year is 2018; the plane has been missing for fiv