Series 3

When an ex-soldier with PTSD goes missing after posting that he wants to end it all, Cheshire Police need to work out fast what may lie behind his disappearance.

Police mount urgent searches for two people with dementia. Sheila has vanished from her husband’s side during a shopping trip, while John has headed out alone into the countryside.

Gloucestershire Police face a series of increasingly complex searches for 59-year-old Michael, whose paranoid schizophrenia prompts him to disappear and go into hiding.

Gloucestershire police search for two vulnerable drug users. One hasn't been seen on the streets for two months, while the other has left hospital against his doctors’ advice.