A bolt of lightning strikes an incoming international flight, and the passengers get impatient waiting for engineers to assess the damage; a plane arrives with a potentially dangerous liquid leaking from its cargo.

An emergency training exercise is stopped by a real emergency, when an explosion goes off inside a passenger terminal.

Torrential rain closes two runways as an incoming flight deals with an onboard medical emergency; a fire training drill turns into a real emergency.

Sydney Airport is on high alert for the arrival of the Prime Minister of Singapore, and Duty Manager Mel's favourite pop star; security searches for a woman reported to have collapsed on the street.

It's sniffer dog Warner's first day, and he has to deal with some nerves. Security test their screening team by trying to smuggle a fake bomb.

Duty manager George deals with security breaches, an air ambulance emergency, drugs being found in an unattended bag, and an irate passenger, all in one Friday.

Sydney Airport's Baggage Manager Kevin is having a day from hell as he trouble-shoots a number of mechanical breakdowns that could bring operations to a standstill. Meanwhile, security screening discovers a passenger travelling with a gun and the Federal Police investigate a suspicious bag left at the terminal entrance.

Looks at the never-ending maintenance work for the airport, including changing a wind sock, repairing a stuck airbridge, and putting out a potentially catastrophic fire.

The busy Christmas Season brings extra challenges with families escaping Sydney on vacation. But the airport is thrown into jeopardy of a shutdown with the discovery of an unidentified white powder on board an incoming flight. Speculation mounts about whether the powder is harmless, or the deadly terror weapon anthrax.