Meet those uncovering truths, demanding answers and fighting for justice against the odds.
Michael Sheen explores the dumping of chemicals in Wales and asks: who鈥檚 in danger now?
Past pupils join forces to face down and jail the tutor who abused boys for decades.
A man fighting for freedom after spending 17 years in prison for a crime he didn鈥檛 commit.
Exposing Britain's forced adoption scandal and how 250,000 babies were taken by the state.
Brian Low is shot dead. Former gamekeeper David Campbell stands accused of his murder.
Panorama examines how giving birth in the UK is getting more dangerous.
A team looking at the Moors Murders discover evidence which could finally close the case.
The investigation of Sarah Everard鈥檚 murder, how the crime unfolded and its impact.
Nikki Allan's murder shocked Sunderland. Why did it take so long to catch her killer?
A mass poisoning of tap water in Cornwall leads to a desperate search for truth.
Investigating the conviction of Glyn Razzell, who was found guilty of his wife's murder.
The shocking tale of Britain鈥檚 nuclear tests, the human cost and allegations of cover-up.
The families begin a campaign to have the convictions of the Cardiff Five overturned.
In 2014, in Mexico, 43 students disappeared. What happened, and who is responsible?
The hunt for the gang responsible for the deaths of 39 Vietnamese people found in a lorry.
As Nilsen鈥檚 crimes are discovered, his victims鈥� stories reveal missed opportunities.
The story of one of the worst disasters in footballing history and the loss of 56 lives.
The full story of one of Britain鈥檚 most high-profile killings.
The team tries to uncover the truth behind the Joyce Cox murder.
Four survivors of the same dangerous man join forces to finally bring him to justice.
