7.46 avg 8 episodes 7.4 → 7.4 49 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Six Days | 7.4 | 122 |
| 2 | The Trojan Tanker | 7.2 | 97 |
| 3 | A Cellar Full of Silence | 7.1 | 83 |
| 4 | The Pied Piper of Hambledown | 8.0 | 108 |
| 5 | One of Our Aircraft Is Empty | 7.5 | 83 |
| 6 | The Man in the Elegant Room | 7.9 | 96 |
| 7 | Handicap Dead | 7.2 | 78 |
| 8 | Black Out | 7.4 | 78 |
7.22 avg 20 episodes 7.3 → 6.4 49 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Who Plays the Dummy? | 7.3 | 74 |
| 2 | The Treasure of the Costa Del Sol | 6.8 | 70 |
| 3 | The Man Who Got a New Face | 7.3 | 74 |
| 4 | Les Fleurs du Mal | 6.9 | 65 |
| 5 | The Shift That Never Was | 7.1 | 65 |
| 6 | The Man from 'X' | 7.5 | 74 |
| 7 | Dead Men Die Twice | 6.9 | 64 |
| 8 | The Perfect Operation | 6.9 | 65 |
| 9 | The Duplicated Man | 7.5 | 65 |
| 10 | The Mysterious Man in the Flying Machine | 6.7 | 60 |
| 11 | Death on Reflection | 7.4 | 66 |
| 12 | The Last Train to Redbridge | 7.6 | 64 |
| 13 | A Small War of Nerves | 8.1 | 78 |
| 14 | The Bones of Byrom Blain | 7.7 | 67 |
| 15 | Spencer Bodily Is Sixty Years Old | 7.1 | 58 |
| 16 | The Ghost of Mary Burnham | 7.5 | 68 |
| 17 | A Fish Out of Water | 6.8 | 64 |
| 18 | The Soup of the Day | 7.1 | 63 |
| 19 | A Ticket to Nowhere | 7.8 | 66 |
| 20 | The Double Death of Charlie Crippen | 6.4 | 64 |
