Callan (1970) Summoned to Appear (S3E2)

Callan is a British drama espionage television series, which originally aired between 1967 and 1972. It features Edward Woodward as David Callan, an agent of a state secret service dealing with internal security threats to the United Kingdom. Summoned to Appear (S3E2): When Callan and Cross’s tail on a Polish operative goes horribly wrong and an innocent bystander dies, Callan must testify at the inquest. His dilemma: perjure himself or implicate his fellow agent and expose the section. It features Edward Woodward, William Squire, Patrick Mower, and Russell Hunter.