After the series launches Colin is approached by people who say they have information – things noticed decades before and never forgotten. But 40 years on can these memories push the investigation forward? If you have been affected by child sexual abuse, help and support is available at bbc.co.uk/actionline

Following Colin’s visit the police get involved – and the team receive shocking news. And, as the investigation draws to a close, a tantalising distant memory brings one more suspect into the frame... If you have been affected by child sexual abuse, help and support is available at bbc.co.uk/actionline Presented by Colin Campbell and Suchin Mehrotra Series written and produced by Satiyesh Manoharajah Episode 9 producer: Jolyon Jenkins Series audio production, sound design and original music: Steve Urquhart Episode sound design and mix: Arlie Adlington Executive producer: Alistair Jackson Archive Producer: Helen Carr Production Co-ordinator: Juliette Harvey Production Manager: Elaina Boateng Production Executive: Laura Jordan-Rowell Creative Director: Georgia Moseley Series Developed by Satiyesh Manoharajah and Colin Campbell Editorial consultants: Jackie Malton and Shaun Keep Legal Advisors: Sarah McColl and Andrew Downey Editorial Policy Advisors: Matthew Eltringham and Kim Barrington Archive from BBC Archive and Fremantle Artwork: Victoria Ford Voice actor: Paula Goldstein Solo Violin performed by Esme Bryden Additional research: Christian Dametto and Bushra Siddiq A BBC Studios Production

The investigation team make a shocking discovery that sends Colin halfway across the world. It’s a huge gamble for one last shot at the truth – but will he find what he’s looking for? If you have been affected by child sexual abuse, help and support is available at bbc.co.uk/actionline Presented and investigated by Colin Campbell Series written and produced by Satiyesh Manoharajah Episode producer: Jolyon Jenkins Episode sound design and mix: Arlie Adlington Original music: Steve Urquhart Executive producer: Alistair Jackson A BBC Studios Production

Why has Vishal’s case remained unsolved for so many decades? Suchin takes a step back from the investigation to look at the bigger picture. What has brought his family to this point? And what’s really going on? If you have been affected by child sexual abuse, help and support is available at bbc.co.uk/actionline Presented by Suchin Mehrotra Series written and produced by Satiyesh Manoharajah Audio production, sound design and original music: Steve Urquhart Executive producer Alistair Jackson A BBC Studios Production

After gathering his evidence Colin goes searching – and comes face to face with a man who has a very big question to answer. And following his investigation the police visit Vishal’s family with news... If you have been affected by child sexual abuse, help and support is available at bbc.co.uk/actionline Presented and investigated by Colin Campbell Series written and produced by Satiyesh Manoharajah Episode producer: Jolyon Jenkins Episode sound design and mix: Arlie Adlington Original music: Steve Urquhart Executive Producer: Alistair Jackson A BBC Studios Production

Colin meets a witness – and a group of men bravely tell him what happened to them at school 40 years ago when they were boys, in the hope that what they know may help the investigation into Vishal’s disappearance... If you have been affected by child sexual abuse, help and support is available at bbc.co.uk/actionline Presented and investigated by Colin Campbell Series written and produced by Satiyesh Manoharajah Audio production, sound design and original music: Steve Urquhart Executive Producer: Alistair Jackson A BBC Studios Production

Decades pass without an answer. But in 2020 lightning strikes. A BBC reporter gets a mysterious call – the man says he’s been deep within the police and he’s seen something that might blow the case wide open... Presented by Suchin Mehrotra and Colin Campbell Series written and produced by Satiyesh Manoharajah Audio production, sound design and original music: Steve Urquhart Executive producer: Alistair Jackson A BBC Studios Production

Many miles from home two men make a chance discovery. Vishu gets a call at work, the media descend – and life for this family will never be the same again. Presented by Suchin Mehrotra Series written and produced by Satiyesh Manoharajah Audio production, sound design and original music: Steve Urquhart Executive producer: Alistair Jackson A BBC Studios Production

A massive search for the missing child swings into action. The police comb London, the TV news appeals for information, the public report sightings - and suspicion falls on his father... Presented by Suchin Mehrotra Series written and produced by Satiyesh Manoharajah Audio production, sound design and original music: Steve Urquhart Executive producer: Alistair Jackson A BBC Studios Production

A young family joins the crowds to celebrate the wedding of Prince Charles and Lady Diana Spencer in central London. But on the way home one of the children disappears and a nightmare begins. Presented by Suchin Mehrotra Series written and produced by Satiyesh Manoharajah Audio production, sound design and original music: Steve Urquhart Executive producer: Alistair Jackson A BBC Studios Production

On the day Prince Charles marries Lady Diana a boy in the crowd vanishes.