6.23 avg 6 episodes 6.1 → 6.3 42 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Hitler's Forbidden Island (Guernsey) | 6.1 | 24 |
| 2 | The Devil's Lair (Maisy Batteries) | 6.3 | 30 |
| 3 | Conspiracy on Death Island (Villa Winter) | 6.0 | 36 |
| 4 | The Doomsday Castle (Kraftwerk Nord West) | 6.0 | 28 |
| 5 | Hitler's Invisible City (DAG Bromberg) | 6.7 | 27 |
| 6 | Mystery Of The Nazi Nukes (Bergkristal) | 6.3 | 22 |
6.81 avg 8 episodes 7.2 → 6.9 42 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | The Sum of All Fears | 7.2 | 14 |
| 2 | Lurking in the Shadows | 6.9 | 11 |
| 3 | Hitler's Secret Underground City | 7.0 | 11 |
| 4 | The Secrets of Nazi Future Tech | 7.1 | 14 |
| 5 | Fuelling Evil | 7.0 | 12 |
| 6 | Secrets of Hitler's Castle | 6.6 | 11 |
| 7 | The Future of Evil | 5.8 | 13 |
| 8 | Himmler's Occult Castle | 6.9 | 11 |
7.13 avg 6 episodes 7.4 → 7.2 48 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Into the Wolf's Den | 7.4 | 9 |
| 2 | Run Silent Run Deep | 6.8 | 11 |
| 3 | Terror Out of Sight | 7.1 | 11 |
| 4 | Underground Terror | 7.2 | 11 |
| 5 | Nazi Gold | 7.1 | 9 |
| 6 | Last Stand | 7.2 | 8 |
7.10 avg 4 episodes 6.7 → 7.7 43 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | A Secret Canal | 6.7 | 8 |
| 2 | Darkened Turrets | 6.7 | 7 |
| 4 | Vengeance Under the Dome | 7.3 | 7 |
| 5 | Island Battleship | 7.7 | 8 |
