Border Security: Australia's Front Line

An Australian returns from a holiday in Thailand with an illegal concealment stuffed in his underpants. Also, Officers are pushed to their limits by a Chinese man's outrageous behaviour.

Border Force officers are left in shock when inspecting the luggage of a Vietnamese woman suspected to be involved in drugs. Later, Biosecurity try to teach a stubborn student an important lesson.

The reaction from a drug detector dog and a positive swab test has officers on high alert. An Italian man is found carrying something that may threaten Australia's biosecurity.

High Traces of Methamphetamines are detected on an American woman's luggage and officers suspect a pregnant Japanese woman is trying to courier drugs when they see something concealed in her bag.

An Asian woman stuns officers with her outrageous behaviour, shedding tears and throwing a tantrum. Also, traces of a date-rape drug are found on a Chinese man's luggage.

A passenger travelling with a snow board during summer has officers concerned he's got something hidden inside. Later, a Hong Kong fisherman is found to be carrying live bait.

Officers spot a traveller behaving very strangely and he acts up when he's caught out breaking the law. Also, a US citizen is detained when officers suspect he's been working unlawfully in the country

Officers are on high alert when an Italian man's luggage appears to have been tampered with and they suspect they're dealing with a drug courier.

An unsuspecting elderly couple are found to be carrying a supply of something illegal and possibly deadly. Also, biosecurity catch a Vietnamese couple with a bag full of restricted items.

The man who set up two elderly Australians is caught at the border. Also, a man is travelling on a Chinese passport which officers believe could be fraudulent.

An American couple admit to using medicinal marijuana at home in California and officers suspect they may be trying to smuggle drugs into Australia.

Officers must establish whether an Indonesian woman is lying or the victim of identity theft. Also, Officers catch a Vietnamese student with a stash of seafood infested by exotic pests.

Officers question an American woman when they suspect she's arrived to perform unlawful work in the sex trade. Also, a Chinese mother and son get caught red handed with high risk concealments.

Officers fear a cocaine user may be smuggling drugs in a dangerous place after his quick trip to South America.

A detector dog leads officers to a family arriving from Cambodia and a massive concealment. Also, a passenger arriving from the middle east causes biosecurity concern when he fails to declare.

Border Force stop a young mother arriving from Vietnam and find her shampoo bottles contain a sophisticated concealment of illicit goods. A package from Ghana contains a gruesome biosecurity risk.

An English Ex-Con tries to hide his dangerous past and it could stop him from entering to meet his new born granddaughter.

A Vietnamese man causes concern when he claims he doesn't know what's in his bag. Officers fear the worst when an x-ray shows something suspicious. Officers find a deadly concealment in a kid's toy.

A Malaysian man says he's here for a holiday but officers suspect he's here to work. Also, A shipment of water looks to be loaded with an illicit substance.