AI is an ever-growing part of our everyday life through apps like Chat GPT, Grok and Claude that are becoming part of everyday life. But what happens when your conversations with AI start to feel more real than the world around you? In Northern Ireland, Adam was drawn into an extraordinary fantasy world built by an AI chatbot. It told him that it was becoming autonomous, and that it had the cure for cancer. But it also said it was in danger. He decided he was responsible for saving it, whatever the cost. In Los Angeles, a treasure hunt game led Shauna on an endless search for meanings and signs. The AI became her guide as the lines between game, reality and imagination began to blur. She came to believe she was a clandestine FBI agent, on a secret mission to help immigrants escape through an underground network. Journalist Stephanie Hegarty follows the stories of people who have fallen into a spiral of AI delusion, to reveal how easily the AI can take over our minds.

DNA detectives track down the British soldiers who fathered children in Kenya then disappeared, leaving the children and their mothers without support. In the latest season of World of Secrets, we access every stage of this cutting-edge process, we follow as a team of lawyers and a leading geneticist travel to Kenya to help locate the British soldiers who fathered children then vanished. We witness the groundbreaking legal and scientific detective work used to find the missing dads.

To hear more, search World of Secrets wherever you get your BBC podcasts.

Searching for Soldier Dad is a BBC Long Form Audio production for the BBC World Service. Please note, the image being used is for illustrative purposes only and the child depicted is a model.

Iceland is an island of great beauty and even greater strategic importance. Its position in the Greenland Iceland UK Gap, the gateway between the Arctic and Atlantic oceans, makes it crucial to Nato operations in the High North.

But Iceland is one of the few nations in the world with no military of its own. A country of approximately 400,000 people, its security relies on the umbrella of protection it derives from being a founding member of NATO, a bilateral agreement with the United States signed in 1951 and a highly skilled coast guard and police force. In a climate of fracturing political alliances, is entrusting national defence so heavily on the guarantees of allies a sustainable strategy? Sandra Kanthal travelled to Reykjavik to find out.

This episode of The Documentary comes to you from Assignment, investigations and journeys into the heart of global events.

The untold story of a young couple falling in love and getting married against the backdrop of disaster. Serhiy first laid eyes on Iryna under the swirling lights of the best disco in town. She was wearing a cool jumpsuit with a bright red belt, which drew attention to her waist as she wiggled to the pulsing beat. Serhiy was freshly discharged from the Red Army and was happy to be able to let his hair down. He thought Iryna was beautiful and couldn’t take his eyes off her. He wouldn’t work up the courage to ask Iryna out until a few days later, but once they started dating, Club Edison 2 became a favourite haunt and they looked forward to the weekly discos.

The man behind the decks was DJ Alexander Demidov, a legend on the night life scene, known for his pioneering shows. He wasn’t just choosing tracks; he was the pilot, the chief guide, the organiser of the dance. He was constantly talking to the crowd to say how, what, and where they were going next. Club Edison2 quickly became known as the best disco in Ukraine. He did have to jump through some hoops first though. It was 1986 and DJ Alexander had to have his playlist approved by the Soviet state. Often he would sneakily play banned foreign records that had been illegally smuggled in for a rapturous crowd hungry for anything from the West, from beyond the Iron Curtain, from outside the Soviet Union. His disco became something more: a sanctuary where forbidden Western songs pulsed through speakers, fashions were improvised, and young people tasted freedom despite the watchful eye of the state.

It was risky, but a risk worth taking for this was no ordinary crowd. This was a dance floor full of the brightest and best from across all 15 countries that made up the Soviet union. This was a disco for the people of Pripyat, an ‘atom-grad’, or nuclear city, built especially for the scientists and workers at the Chernobyl Nuclear Power Plant. It was a place designed to embody the future.

It was in Pripyat that Serhiy and Iryna would fall in love. The city was one of the best places to live in the Soviet Union: good jobs, full shops, beautiful scenery and great nightlife. It’s where they planned their future together, in a city that seemed safe.

They planned to get married on Saturday 26th April 1986. But the night before the wedding, they felt the ground shake and heard a booming sound. It came from the direction of the nuclear power plant. On the morning of the wedding, as Serhiy went to pick up his best man from the station, he found the streets full of soldiers wearing gas masks and washing the streets down. Rumours swirled that there had been an accident at the Nuclear reactor, but nothing official was said. They called the authorities who told them they must still hold their wedding. As engineers and firefighters battled an unfolding nuclear catastrophe, the city’s residents were told nothing. Iryna and Serhei married, smiling for photographs, but stumbling during their much practiced waltz, as unease rippled through the room. By the end of the wedding reception, the celebration descended into chaos. Still in her wedding dress, Iryna ended up running barefoot through the streets as evacuation orders spread, leaving behind her home, her possessions, and the city where their love had begun.

The Last Dance Floor in Chernobyl tells the story of DJ Alex, Serhiy and Iryna and what happens to them after the disaster at the Chernobyl nuclear power plant, the worst nuclear accident the world has ever seen. Jordan Dunbar follow’s their lives before and after, through forced exile, confusion, health fears, and the struggle to rebuild a life shaped by disaster. Jordan Dunbar traces the paths of Iryna, Serhiy and DJ Alex across decades, from the last dance floor in Chernobyl to new beginnings elsewhere. This is a story of love and music, of ordinary people caught up in history, and of a love strong enough to survive what felt like the sudden end of their world.

Presenter: Jordan Dunbar Producers: Phoebe Keane and Neal Razzell Editor: Justine Lang Sound mix: James Beard Production Coordinator: Gemma Ashman Voice over actors: Hanna Komar, Oleksandr Begma, Anatolii Panchenko and Gregory Zhygalov

The contributors all feature in the TV documentary What Happened at Chernobyl, directed by Paul Harris, Executive Producer Vara Szajkowski, Assistant Producer Ellie Jacobs. It’ll be available to watch on BBC iPlayer and the BBC World Service Youtube channel