- Script Editor: Terrance Dicks;
- Writer: Guy Leopold (alias Barry Letts and Robert Sloman);
- Produced by: Barry Letts;
- Director: Christopher Barry;
- Designer: Roger Ford;
- Incidental Music: Dudley Simpson;
- Fight Arranger: Peter Diamond (4);
- Brigadier Lethbridge-Stewart: Nicholas Courtney;
- Sergeant Benton: John Levene;
- Jo Grant: Katy Manning;
- Captain Yates: Richard Franklin;
| Channel | Episode | Title | Date | Viewers | Position |
| BBC 1 |
299 |
Episode One |
Sat 22 May 1971 |
2218:15 - 18:40 |
9.2M |
26th |
| BBC 1 |
300 |
Episode Two |
Sat 29 May 1971 |
2918:10 - 18:35 |
8.0M |
23rd |
| BBC 1 |
301 |
Episode Three |
Sat 5 Jun 1971 |
518:10 - 18:35 |
8.1M |
34th |
| BBC 1 |
302 |
Episode Four |
Sat 12 Jun 1971 |
1218:10 - 18:35 |
8.1M |
24th |
| BBC 1 |
303 |
Episode Five |
Wed 16 Jun 1971 |
1618:10 - 18:35 |
8.3M |
17th |
- Aldbourne and Membury, Wiltshire;
- Television Centre Studio 3;
- Television Centre Studio 4;
|