TV Guide Pick Saturday

An Italian tourist is questioned about his travel documents by officials, an American couple argue with quarantine officers in Melbourne and a passenger's anxious behaviour arouses suspicion

A British girl returning from New Zealand is questioned by immigration officers, two Japanese travellers are suspected of smuggling wildlife and a passenger is detained on suspicion of bringing drugs into the country

Customs question a man who claims to be visiting his internet lover, and officers launch an investigation into illegal fishing, and a woman's life with her boyfriend hangs in the balance

Airport security staff discover a hoard of deadly weapons on an X-ray, a Korean man is found to be using someone else's passport, and a passenger is caught carrying suspicious looking statues in his luggage

Another edition of the fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports, following customs and immigration officers as they go about their daily business of tackling drug runners, illegal immigrants and terrorists

Animals' superiority over humans when it comes to the senses, beginning with a look at smell. Detecting chemical scents was one of the first skills was one of the first skills creatures they developed and is vital for finding everything from possible mates to potential predators

The challenges posed by different habitats, beginning with the desert, a world with no water and where temperatures fluctuate from the blistering heat of midday to the freezing depths of night

This edition celebrates the new Orangutan Jungle School graduates and cameras follow the convoy to the release site where the team bids their friends a poignant farewell

A woman tries to smuggle a very expensive gift back into Australia, while an escort and his boyfriend are held in separate immigration interview rooms. Plus, an elderly lady returns from Turkey with a bag of nuts and seeds, and a light posted from Hong Kong looks suspicious under x-ray

A couple from the Solomon Islands are caught carrying seeds in their luggage. Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Officers suspect there are drugs hidden in a man's bag, and a travelling musician, who claims to possess special powers enabling her to foretell the future, struggles to get through immigration. Meanwhile. Biosecurity officials discover an unusual concoction in the bag of a traveller

A man is caught red-handed by customs and tries to blame his travelling companion, but officials suspect they could be working together. Meanwhile, an immigration raid targets illegal workers and a swoop on a taxi rank catches the drivers with no work rights. Plus, a father and son from China have four suitcases full of undeclared food and a stimulant drug is found in picture frames that have arrived by mail