April 30, 1980.

Six heavily armed gunmen burst into the Iranian embassy in London, taking 26 people hostage.
 
A tense six-day siege ensued as millions gathered around screens across the country to witness the longest news flash in British history.
 
Six days in which police negotiators and psychiatrists sought a bloodless end to the standoff, and the SAS laid plans for a daring rescue mission.

Drawing on unpublished source material, exclusive interviews, and witness testimony, bestselling historian Ben Macintyre tells the dramatic story in full for the first time – from the years and weeks of build-up on both sides, to the minute-by-minute of the rescue.
 
The Siege is the remarkable story of what really happened on those fateful six days, of a moment that forever changed the way the nation thought about the SAS, and itself, forever.
 
'Masterly . . . it has never been recounted so pleasurably as it has been here'
New York Times
 
'Macintyre does true-life espionage better than anyone else’
John Preston