Heathrow is the busiest airport in Britain and fighting to keep its top spot in Europe. The series focuses more on the nearly 77,000 colleagues that work on the airfield and in the terminals and who are now trying to keep Heathrow in prime position more than ever. As the popular king and queen of Heathrow's passenger experience managers - Demi and Sue - deal with a new array of passenger conundrums, we also go behind the scenes of Britain's biggest border for the first time.

It's half term and some rich Russian kids are returning home from British boarding schools, and there's trouble when a mobile crane enters a live airfield.