Two businessmen from Thailand keep changing their stories. A woman may be the victim of a romance scam and shipment from Africa has officers at the pointy end of biosecurity.

An African man may be travelling on false documents, a package from Hong Kong has biosecurity officers digging deeper and detector dog Ralphy sniffs out some high-risk snacks.

Bags full of designer goods have officers suspicious. A box of natural medicines is not what it seems and Biosecurity isn't horsing around with a Mongolian delicacy in this passenger's luggage.

A cricketer from the UK isn't playing by the rules. An Irishman may have had too much fun at his brother's wedding... and tubs of powder are bulked up with the wrong supplement.

Unusual travel plans and strange documents have officers concerned, and Border Force isn't playing games when it comes to busting an attempt to smuggle cocaine through the border.

An American is caught with large quantities of undeclared medicines. A couple from Korea draw attention for all the wrong reasons and officers make a chilling discovery inside a fridge from Spain.

Officers uncover a surprising secret inside a shipping container from China. An African man starts to sweat under questioning. A detector dog responds to something hidden in a passenger's luggage.

A French party-goer is lying to officers... and they need to find out what's he's hiding. A woman from Vietnam has something dangerous hidden in her jewellery box.

A cookery student from India finds himself in hot water with Border Force officers. Biosecurity makes an alarming discovery in boxes of food from Indonesia.

A man with a shadowy past claims to be a devoted father, but doubts arise as his dark history is revealed. A traveller returning from Vietnam has something concealed in her clothing.