Mysterious disappearances and stories of the searches that helped close the cases.
Police race to find two missing teenagers who are struggling with their mental health.
At 11 years old, Alex thought he was going on holiday. Instead, he vanished for six years.
In 2014, in Mexico, 43 students disappeared. What happened, and who is responsible?
One phone call changes everything as dark secrets emerge in the hunt for Tony Parsons.
Reporting on the disappearance or murder of hundreds of Canadian women and girls.
Two reporters chase a scoop in Syria but fall into the sights of jihadists.
The documentary story of Nazanin, Anoosheh and other hostages held unjustly in Iran.
Tir Dhondy retraces Sarm's steps before her disappearance from a charter yacht in 2021.
The search for vanished children and grandchildren takes a father from Tyrone to Syria.
The story of Musa al-Sadr, the Lebanese Shia leader who vanished in Libya in 1978.
Chloe Ayling is kidnapped by a criminal gang, and the police operation begins.
Neil pieces together the evidence on the murder of his mother, Sandra Rivett.
The inside story of the search for Nicola Bulley as told by her family and the police.
The heartbreaking search for answers after 19-year-old Cole Cooper vanished in May.
Two people face trial for the murder of 35-year-old Margaret Fleming.
