On August 17, 1992, Garry Wood and Colin Wright were driving along the A70 near Tarbrax, South Lanarkshire, Scotland, when a black disc hovering above the road dropped a curtain of white light in front of their car. A journey that should have taken 30 minutes took two and a half hours. The MoD received a formal two-page report on the incident in 1996.

Under hypnotic regression, Wood and Wright described being taken aboard a craft and subjected to physical examinations. West Lothian UFO investigator Malcolm Robinson, who documented the case, noted the men's accounts were consistent across multiple sessions. A Scotsman investigation in 2012 confirmed declassified MoD documents showed the department treated the report seriously.