4 - 1The Town of No Return Oct. 02, 1965- 4 - 2The Gravediggers Oct. 09, 1965
- 4 - 3The Cybernauts Oct. 16, 1965
- 4 - 4Death at Bargain Prices Oct. 23, 1965
- 4 - 5Castle De'ath Oct. 30, 1965
- 4 - 6The Master Minds Nov. 06, 1965
- 4 - 7The Murder Market Nov. 13, 1965
- 4 - 8A Surfeit of H2O Nov. 20, 1965
- 4 - 9The Hour that Never Was Nov. 27, 1965
- 4 - 10Dial a Deadly Number Dec. 04, 1965
- 4 - 11Man-Eater of Surrey Green Dec. 11, 1965
- 4 - 12Two's a Crowd Dec. 18, 1965
- 4 - 13Too Many Christmas Trees Dec. 25, 1965
- 4 - 14Silent Dust Jan. 01, 1966
- 4 - 15Room Without a View Jan. 08, 1966
- 4 - 16Small Game For Big Hunters Jan. 15, 1966
- 4 - 17The Girl From Auntie Jan. 22, 1966
- 4 - 18The Thirteenth Hole Jan. 29, 1966
- 4 - 19Quick-Quick Slow Death Feb. 05, 1966
- 4 - 20The Danger Makers Feb. 12, 1966
- 4 - 21A Touch of Brimstone Feb. 19, 1966
- 4 - 22What the Butler Saw Feb. 26, 1966
- 4 - 23The House That Jack Built Mar. 05, 1966
- 4 - 24A Sense of History Mar. 12, 1966
- 4 - 25How to Succeed... at Murder Mar. 19, 1966
- 4 - 26Honey For the Prince Mar. 26, 1966
