Your view of airports and the people who work there will never be the same again, as the BBC's cameras have been given unprecedented access to one of Britain's busiest airport terminals.

For months, the producers have followed anyone and everyone to produce this portrait of life at the cutting edge of aviation. From check-in staff to cabin crew, from pilots to paparazzi, and from low-cost airline owners to their unfortunate passengers, all human life is here - and all played by Lucas and Walliams.

80-year-old Hetty Wolf takes her first ever flight with Great British Air, husband and wife pilots Simon and Jackie sort out their marriage at 35,000 feet above Sweden, and Omar Baba, owner of low-cost carrier FlyLo, is forced to do something about the lack of life-jackets on his planes. Meanwhile, Omar's most junior employee Taaj is on buggy duty, and Chief Immigration Officer Ian Foot has found a suspicious passport.

This week, Flylo ground crew Taaj Manzoor bumps into Harry Potter actor Rupert Grint, and customs officers Roberts and Stewart try to work out what to do with a truly massive drugs haul.

And we meet Penny, Great British Air's snobbiest employee, as she comes to terms with passengers from the lower classes using her exclusive first-class cabin.

Warning: this episode contains air rage.