1. The Last Man

Allied Intelligence must convince the Germans that March is loyal to them: information has leaked out about a new Nazi super-weapon, and March is the only agent who has access to the invention.

Air Date : 1966-01-12

2. Target, David March

Air Date : 1966-01-19

3. The Fortress Below (1)

Air Date : 1966-01-26

4. The Weapon Within (2)

Air Date : 1966-02-02

5. Traitor's Blood

Air Date : 1966-02-09

6. Agent of the East

Air Date : 1966-02-16

7. Sacrifice!

Air Date : 1966-02-23

8. The Secret War

Air Date : 1966-03-02

9. Invasion by the Stars

Air Date : 1966-03-09

10. The Return of Elm

Air Date : 1966-03-23

11. Jet Trail

Air Date : 1966-04-06

12. How to Kill a Toy Soldier

Air Date : 1966-04-13

13. The Deserters

Air Date : 1966-04-20

14. The Other Fuhrer

Air Date : 1966-04-27

15. The Key to the Code

Air Date : 1966-05-04

16. Field of Dishonor

Air Date : 1966-05-11

17. The Friendly Enemy

Air Date : 1966-05-18