Border Security: Australia's Front Line Season 21

Officers are concerned by a passenger's bizarre behaviour when traces of a drug known as 'Charlie Sheen' are found. A gruesome find in the mail room may be linked to witchcraft. Immigration suspect a baby-faced tourist may be an imposter.

A bungling drug mule tries every trick to avoid being caught. An elderly gambler’s luck runs out when Immigration uncover his ongoing scam. Biosecurity intercept a delivery from Russia which is suspected to be part of the illegal trade in endanger animals.

A bunch of Aussies returning from Thailand are all packing a shocking concealment. A man on the run from Immigration detention tries to escape capture. Officers smash a sophisticated drug syndicate.

When a woman pushes away a sniffer dog officers hone in on what she has stuffed in her undies, a young man’s past is exposed and two Indian passengers will say just about anything to get out of a fine.

A drug detector dogs sits at a woman’s bags and officers need to investigate further. A nervous passenger attracts the attention of Biosecurity and what he’s hiding may be deadly.

Two brothers from Thailand claim they're just tourists but after talking to their sister, Border Force discovers something that makes their story likely to be a lie.

A nervous man says he's here to visit his wife for their wedding anniversary but what's in his luggage may spell the end of his trip. An officer's skills stop a drug delivery through the mail.