With unprecedented access to all facets of this mega facility, the series follows some of the 60,000 staff working hard to keep it safe, secure, and on schedule.　　Season two follows the renovation of both the airport's runways – a tricky enterprise that has the airport operating using only one runway for several months with huge pressure to finish the build on time. The series will be at the heart of passenger operations, customs, the control tower and flight services to see how the teams cope during a particularly stressful and demanding time.