Callan (1969) The Most Promising Girl of Her Year (S2E2)

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. The Most Promising Girl of Her Year (S2E2): Callan is ordered to investigate Joan Mather, a government laboratory scientist who has expressed concerns that her work might be used for biological warfare. It features Edward Woodward, Michael Goodliffe, Anthony Valentine, Elizabeth Bell, and Russell Hunter.