The Grade II listed bunker was originally built in 1941 as a World War Two radar station.
The aircraft was rescued from an abandoned New Zealand airfield and shipped home to Bristol in 2018.
Grace, 16, and her grandad are restoring Lightning XR724 at the former RAF Binbrook in Lincolnshire.
The 1960s monitoring post at Scarborough Castle would have housed volunteers in the event of war.
Radio Berkshire's Lorin Bozkurt explores the origins of a secret emergency war planning facility.
Volunteers who helped restore an Edinburgh nuclear bunker are worried someone will be hurt because of safety issues.
A Cold War volunteer recalls life in a bunker now about to collapse into the sea due to erosion.
The double agent compromised more than 100 operations and betrayed more than 30 agents spying for the West.
The installation still bears its original graffiti and once formed part of the wall in north Berlin.
