Fake fashion is big business. From Gucci to Balenciaga, replica brands are everywhere. The trade is run by crime syndicates implicated in human trafficking and even terrorism. This story goes inside the counterfeit industry.

Indonesia has embarked on a radical plan to relocate its congested and sinking capital Jakarta to the jungles of Borneo. A new $45 billion mega city is currently being built but critics say it's too expensive and too remote.

The horrific events of October 7 and its aftermath have dramatically changed the lives of Palestinians and Israelis. With widespread loss of life and devastation, suspicion and revenge are boiling over and fear is everywhere.

In Punjab, northern India, the Sikh separatist movement is fighting to create its own independent Khalistan nation. Separatist leaders have accused the Modi government of targeting Sikhs around the world including Australia.

Italy's population is ageing and with towns dying out residents in Sicily have undertaken a grand social experiment. They're selling abandoned houses to newcomers for just one euro in a bid to breathe new life into old towns.

In the jungle of central Vietnam lies Son Doong, a magnificent underground cave passage, the largest in the world. Undisturbed for millions of years, its future has been placed in doubt with plans to make it a tourist mecca.

Eighty years since Japan and the Allied forces waged a battle at Guadalcanal, Solomon Islanders are still paying the price with thousands of unexploded devices left behind and the threat of leaking oil from rusting warships.

In Japan the ancient sport of sumo is wrestling with how to accept women competitors on an equal footing, challenging deeply held traditions. We meet the women who are trying to modernise attitudes in a sport they love.

The UK illicit drug market is worth an estimated 9.4 billion pounds a year. In small towns in the north of England, drugs are being warehoused and sold by criminals who make large sums of money and lead enviable lifestyles.

In the decades since the Korean war, over 200,000 children have been adopted to families worldwide. Now as adults, adoptees are demanding investigations into falsified documents, duplicate identities and even stolen children.

Immigration has become a defining issue in this year's US Presidential Election race. In Texas, the Republican Governor has politicised the problem by sending busloads of immigrants to Democrat cities like New York.