Smiley and his people are facing a remarkable challenge: a mole - a soviet double agent - who has burrowed his way in and up to the highest level of British Intelligence. His treachery has already blown some of their vital operations and their best networks. The mole is one of their own kind. But which one?
Mitch is a 25-year-old with commitment issues. Leonard is a five-year-old kid with asthma and vision problems, who captivates everyone he meets. Pearl is Leonard's teenage mother, who's trying to hide a violent secret from her past. Life has given Pearl every reason to mistrust people, but circumstances force...