Documentary series looking behind the scenes at Heathrow Airport. The programme shows air traffic control in action and explains the science and logistics behind every flight.

In one of BBC Two's most ambitious live broadcasts, Kate Humble, Dallas Campbell and Anita Rani go airside at Heathrow, the world's busiest international hub airport. More than 200,000 passengers travel through Heathrow each day. Everything and everyone is on a deadline. Unprecedented behind-the-scenes access allows viewers to witness this daily relay race first-hand. The programme shows air traffic control in action and explains the extraordinary science and logistics behind every flight.

Kate is based at the heart of the airport, the air traffic control tower, giving an eagle's eye view of the complex choreography of landings, departures and ground movements. She finds out how Heathrow went from a row of tents to an international powerhouse welcoming 70 million passengers a year. Anita discovers how weather affects the airport each day, not just when it snows. And Dallas looks at first class on the A380, the world's largest passenger jet.