Code:

http://www.imdb.com/title/tt0056754/

The 24 b/w episodes with a running time of 48 minutes per episode had no regular cast, choosing instead to follow various "spies" as they did their "jobs." The episodes featured spies for the West, for the Soviet Bloc, spies working for peace and resistance operatives. The episodes drifted between contemporary times, the Second World War and the interwar period with occasional episodes set in other times.

Code:

http://www.kprotector.com/p18/589ba424e092b