For me these series worth a perfect 10/10, these series made me discover Robert Powell! And also I loved the subject, I found it different. Hannay isn't there to solve the problem, but exactly as in The thirty nine steps, he is just the victim of the circumstances.

Also the episodes are well written, the stories are intelligent. Among the current characters I loved the respect-hate relationship between Hannay and the bad guy, Count Von Schwabig, a patriot who is prepared to kill for his country. However, his last appearance in The Terrors Of The Earth in which he saves Hannay amazed me, I don't know why he just appeared once in the second series, too bad because I would have loved to know what happened after this episode (could he have returned as the bad guy?).

There's also something else I loved from these series : even if there's a different "Hannay girl" in each episode, the series are very feminist. All the female leads are strong women for their time, cultivated, independent and - sometimes - wiser than Hannay.