A U.S. double agent in WWII Germany infiltrates Nazi councils while evading Allied intelligence (publicly, he was a foreign correspondent who had renounced his American citizenship). Three episodes of the series were stitched together into the 1966 theatrical movie 'I Deal in Danger.'
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Last Man | 1966-01-12 | 30 min |
| Season 1 | Episode 2 | Target, David March | 1966-01-19 | 30 min |
| Season 1 | Episode 3 | The Fortress Below (1) | 1966-01-26 | 30 min |
| Season 1 | Episode 4 | The Weapon Within (2) | 1966-02-02 | 30 min |
| Season 1 | Episode 5 | Traitor's Blood | 1966-02-09 | 30 min |
| Season 1 | Episode 6 | Agent of the East | 1966-02-16 | 30 min |
| Season 1 | Episode 7 | Sacrifice! | 1966-02-23 | 30 min |
| Season 1 | Episode 8 | The Secret War | 1966-03-02 | 30 min |
| Season 1 | Episode 9 | Invasion by the Stars | 1966-03-09 | 30 min |
| Season 1 | Episode 10 | The Return of Elm | 1966-03-23 | 30 min |
| Season 1 | Episode 11 | Jet Trail | 1966-04-06 | 30 min |
| Season 1 | Episode 12 | How to Kill a Toy Soldier | 1966-04-13 | 30 min |
| Season 1 | Episode 13 | The Deserters | 1966-04-20 | 30 min |
| Season 1 | Episode 14 | The Other Fuhrer | 1966-04-27 | 30 min |
| Season 1 | Episode 15 | The Key to the Code | 1966-05-04 | 30 min |
| Season 1 | Episode 16 | Field of Dishonor | 1966-05-11 | 30 min |
| Season 1 | Episode 17 | The Friendly Enemy | 1966-05-18 | 30 min |
| Production | Walter Grauman | Producer |