After the series launches Colin is approached by people who say they have information – things noticed decades before and... more

Following Colin’s visit the police get involved – and the team receive shocking news. And, as the investigation draws to... more

The investigation team make a shocking discovery that sends Colin halfway across the world. It’s a huge gamble for one... more

Why has Vishal’s case remained unsolved for so many decades? Suchin takes a step back from the investigation to look... more

After gathering his evidence Colin goes searching – and comes face to face with a man who has a very... more

Colin meets a witness – and a group of men bravely tell him what happened to them at school 40... more

Decades pass without an answer. But in 2020 lightning strikes. A BBC reporter gets a mysterious call – the man... more

Many miles from home two men make a chance discovery. Vishu gets a call at work, the media descend –... more

A massive search for the missing child swings into action. The police comb London, the TV news appeals for information,... more

A young family joins the crowds to celebrate the wedding of Prince Charles and Lady Diana Spencer in central London.... more