These six shows chronicle mysterious vanishings of all kinds, some of them tragic crimes that expose systemic failures, others elaborate escapes staged by desperate people.
On Tuesday morning, desperate and frantic with worry, the parents of the four teenage boys who had disappeared on a camping weekend in Snowdonia sped across.
Family and police are concerned for the safety of a Dunedin grandmother who reportedly failed to arrive at Queenstown Airport to pick up a relative. Colleen.