"Say It With Flowers" Danger Man episode

I was watching old Danger Man episodes again--I rent them through Netflix--and came across an episode called "Say It With Flowers." In it, Drake is being told to go find a guy that might be a double agent. Drake says, "Perhaps he's just decided to retire." His contact guy giving him the job questions, "Retire?"

Fascinating--this is what is behind the entire idea of THE PRISONER. Can you retire from this job???

Also, another episode on the disc, "To Our Best Friend," has a Russian spy infiltrate a British agent and marry him, years before he is actually important. They conclude that she stayed for five years at some kind of village in Russia that was completely made up and immersed in an English lifestyle and culture in order to acclimate her to the job.