- Script Editor: Robert Holmes;
- Writer: Gerry Davis;
- Produced by: Philip Hinchcliffe;
- Director: Michael E. Briant;
- Designer: Roger Murray-Leach;
- Incidental Music: Carey Blyton;
- Sarah Jane Smith: Elisabeth Sladen;
- Harry Sullivan: Ian Marter;
| Channel | Episode | Title | Date | Viewers | Position |
| BBC 1 |
398 |
Part One |
Sat 19 Apr 1975 |
1917:35 - 18:00 |
9.5M |
24th |
| BBC 1 |
399 |
Part Two |
Sat 26 Apr 1975 |
2617:30 - 17:55 |
8.3M |
28th |
| BBC 1 |
400 |
Part Three |
Sat 3 May 1975 |
317:50 - 18:15 |
8.9M |
25th |
| BBC 1 |
401 |
Part Four |
Sat 10 May 1975 |
1017:30 - 17:55 |
9.4M |
22nd |
This programme has not been repeated.
- Television Centre Studio 1;
This programme has not working titles
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