Tinker Tailor Soldier Spy

Superlative spy mini-series from John Le Carre's novel stars Alec Guinness as George Smiley, a retired agent for the British Secret Intelligence Service, called back into service to find an agency mole working for the Russians. With no access to special files and having to depend on old contacts, Smiley feverishly tries to pin down the person responsible for the deaths of fellow SIS agents.