These are radio dramas barely changed for the screen. Although each episode is set in a different locale, they are all filmed, it seems, on LA area back lots. Quite a difference from "I Spy," say, which is uses a very similar conceit but makes the most of the scenery. Also, I wonder if the "commissioner" got sick during the filming, because his character disappears a few episodes in.
The cold war ethos is such that Donlevy's character is sympathetic to Eastern Europeans seeking to escape the Eastern bloc, but if there is a rebellious movement in Africa he is sent to quash it. He's such a "lovable dope" that all he does is follow orders -- no Patrick McGoohan style angst here.
While fairly cookie-cutter, the first is a pretty good episode relative to some of the later ones. Also, all the characters appear to be speaking Spanish, even though the episode was set in Portugal. Last I checked Spain and Portugal were different countries, but, then again, this was the era of the "Ugly American."