Vladimir Kuzichkin, a KGB superspy operating under the codename 'Redwood' in Iran, defected to the West in the early 1980s, hoping for medical treatment and a new life. His decision to betray the Soviet intelligence service resulted in a dramatic escape from Iran to the United Kingdom, orchestrated by MI6 agent Ian McCredie.

Kuzichkin's intelligence provided MI6 with unprecedented insights into the KGB's inner workings. The volume and quality of the information were so high that much of it was initially unusable without risking exposure of the source. As his posting in Iran neared its end in the summer of 1982, there was pressure for Kuzichkin to postpone his defection and continue his work for MI6 from Moscow, with promises of increased pay and generous resettlement terms in the UK.

However, the stress of his double life began to take a severe toll on Kuzichkin. He suffered from severe anxiety, increased drinking, and recurring nightmares. A cipher clerk's slip about an impending KGB security review at the Russian embassy amplified his fears. His handler, Ian McCredie, noted Kuzichkin's deteriorating mental state, acknowledging that the service had been unable to address the personal reason for his defection: sexual impotence.

One evening, Kuzichkin used a pre-arranged code to signal an urgent need for extraction. "I am in great danger. I have no option but to ask you to exfiltrate me immediately from Iran to the UK," he communicated to McCredie, his voice trembling. "I have an awful feeling they are going to get me. You MUST take me out!"

McCredie, aware of the potential danger and the limited time Kuzichkin might have if his betrayal was discovered, had already devised an escape plan. The strategy involved Kuzichkin posing as a British diplomatic courier crossing the border on foot from Iran into Turkey. This plan carried significant risks, relying on Kuzichkin's ability to convincingly play the role, the integrity of forged documents, and the timing of the crossing before his absence was noticed in Tehran.

A delicate issue arose regarding Kuzichkin's wife, Galina. McCredie informed him that only he could be exfiltrated, not his wife, who spoke little English and would not be able to pass as the diplomat's spouse. Kuzichkin's surprisingly callous response, "I don’t care. She despises me anyway and she has made my life a misery, so good riddance. F*** her," led McCredie to suspect that Galina might have discovered his defection and threatened to report him.

MI6 procured forged documents, including a British passport under the name 'Michael Guy Road' and a diplomatic courier's authorization. McCredie meticulously prepared a travel form and a cover story for Kuzichkin: he was a British diplomat returning overland to visit archaeological sites on the Turkish side of the border. The plan was for Kuzichkin to drive his BMW to the Bazargan border crossing, then proceed on foot with forged documents, where an MI6 team would be waiting to escort him to the UK.

The first attempt at escape was aborted when Kuzichkin, visibly shaking and unable to sign his forged passport, indicated he could not proceed. The following evening, however, Kuzichkin appeared calmer and more resigned. He successfully signed the passport and parted ways with McCredie, setting off on his journey.

Kuzichkin navigated through Iranian checkpoints using his Soviet diplomatic documents and successfully reached the Bazargan border. A close encounter with Revolutionary Guards near the border post tested his resolve. Despite initially professing ignorance of Persian, he adeptly switched to fluent Persian when questioned, then back to English, using his cover story about searching for Noah's Ark. His quick thinking and the orderly's corroboration of his arrival by car secured his passage.

At the Turkish immigration, Kuzichkin presented his forged British passport. After a tense moment where an officer scrutinized the document, he was stamped and allowed to proceed. Outside, MI6 officers met him, marking the successful completion of his perilous flight.

Upon resettlement in Britain under a new identity, Kuzichkin eventually found a measure of peace and began a new life. He pursued his request for a circumcision, performed by an army doctor, and later found a fulfilling relationship, leading to his second marriage and the birth of a daughter. He even practiced as an acupuncturist, secretly treating actor Sir Alec Guinness for a bad back.

However, his past continued to haunt him with bouts of "surveillance fever." His second marriage eventually collapsed, and his struggles with alcohol escalated. In 2009, Kuzichkin died of a heart attack at the age of 62. Despite the KGB's dismissal of him as an alcoholic traitor, his actions were seen as a significant challenge to the agency.