As many nations condemn apartheid in South Africa, tension mounts between Thatcher and Elizabeth over their clashing opinions on applying sanctions.

Harry is imprisoned and accused by MI5 of being the Russian mole. Lucas disappears to Moscow in a bid to gather intelligence and get to the bottom of Harry’s arrest,…

Harry vows revenge by taking down the head of Russia’s intelligence service in Britain with the help of Lucas North. Lucas’s loyalties, however, are secretly no longer with MI5 and…

With Lucas back within MI5 he reveals that the Russians interrogated him about Operation Sugar Horse, the most secret ongoing spy operation MI5 ever had. If the Russians know about…