1. Budapest

Air Date : 1954-04-01

2. Antigua

Air Date :

3. Athens

Air Date : 1956-04-06

4. Baja

Air Date : 1956-05-03

5. Batavia

Air Date : 1958-01-02

9. Casablanca

Air Date :

12. Edinburgh

Air Date : 1956-12-19

13. Geneva

While on assignment in Geneva, McQuinn uncovers an assassination scheme involving the Russians.

Air Date :

14. Havana

Air Date : 1956-07-30

15. Helsinki

Air Date : 1956-07-23

18. London

Air Date : 1956-07-09

23. Monte Carlo

While on assignment in Monte Carlo, Steve finds an American intelligence agent who has been severely beaten and robbed. Steve agrees to undertake the agent's assignment - retrieving a roll of film with incriminating photographs of a corrupt politician.

Air Date :

24. Naples

Air Date : 1956-05-07

26. Paris

Air Date : 1955-02-22

27. Prague

While in Prague, McQuinn helps a Russian ice-skating star who wishes to defect to the West.

Air Date :

30. Rome

While in Rome investigating the leaking of classified documents from the American Embassy, McQuinn stumbles upon a German counterfeiting plot.

Air Date :

32. Sofia

Air Date : 1956-03-07

33. Tangiers

Steve tries to help a Bulgarian schoolmaster, hunted by his country's secret police in Tangier, obtain a visa to the United States.

Air Date :

34. Teheran

Air Date : 1955-07-20

35. Tel Avivi

Air Date : 1958-09-11

36. Trieste

Air Date : 1955-05-23

37. Ankara

On an airplane Steve meets two children traveling alone who refuse to give their last name. When their aunt fails to meet them at the airport, Steve takes pity on them and allows them to stay in his hotel room. The children's aunt finally arrives, but Steve learns too late that a Romanian industrialist has fled to Crete with a large sum of money and the "aunt" is actually a communist agent who plans to use the children as hostages to force the defector to return behind the Iron Curtain.

Air Date : 1956-02-16

38. Vienna

Air Date : 1956-08-19

39. ZAMBOANGA

Air Date : 1956-06-10