Missing Live asks viewers for their help to find some of the UK's disappeared. Working with police forces and the UK charity Missing People, the series reveals how they try to discover the whereabouts of the thousands of people who go missing every year.
In the studio, presenter Louise Minchin talks to family, friends and experts, exploring the heartbreaking stories of people currently missing. While, new for this series, Rav Wilding meets those who have been safely found, telling their incredible stories.
Also this series, actress Pauline Quirke joins the Police Missing Persons Unit in Hackney - the area where she grew up - to experience firsthand their remarkable work to reunite the families of missing people.
On this programme: 80-year-old Margaret Haverson was found after a three day search, by Max and his dog handler Alex. Margaret was barely conscious when she was found in dense woodland near Dartmoor. She is reunited for the first time with her canine rescuer.
The family and friends of Bristol-born Simon Baker ask viewers for their help to find him. He disappeared after the death of his mother - his fiance wants to know he's safe and well.