List of Serials
See also: List of Doctor Who serialsAll serials in this season continue directly one after the other, tracing one single problematic voyage of the TARDIS crew. Despite the continuity, each serial is considered its own standalone story.
| Story No. | Serial | Title | Directed by | Written by | UK viewers (million) |
AI (%) |
Original air date | Production code |
|---|---|---|---|---|---|---|---|---|
| 075 | 1 | Robot | Christopher Barry | Terrance Dicks | Ep. 1: 10.8 Ep. 2: 10.7 Ep. 3: 10.1 Ep. 4: 9.0 |
Ep. 1: 53 Ep. 2: 53 Ep. 3: — Ep. 4: 51 |
28 December 1974 - 18 January 1975 | 4A |
| With the newly regenerated Doctor, UNIT have to contend with the theft of the plans for the new disintegrator gun by what seems to be a mechanical monster. | ||||||||
| 076 | 2 | The Ark in Space | Rodney Bennett | Robert Holmes | Ep. 1: 9.4 Ep. 2: 13.6 Ep. 3: 11.2 Ep. 4: 10.2 |
— | 25 January - 15 February 1975 | 4C |
| The Doctor, Sarah, and Harry accidentally travel to Space Station Nerva in orbit around a far future Earth where they encounter an insectoid alien race known as the Wirryn. | ||||||||
| 077 | 3 | The Sontaran Experiment | Rodney Bennett | Bob Baker & Dave Martin |
Ep. 1: 11.0 Ep. 2: 10.5 |
Ep. 1: — Ep. 2: 55 |
22 February – 1 March 1975 | 4B |
| On a future Earth, the Fourth Doctor, Harry Sullivan, and Sarah Jane Smith discover Styre, a Sontaran warrior. | ||||||||
| 078 | 4 | Genesis of the Daleks | David Maloney | Terry Nation | Ep. 1: 10.7 Ep. 2: 10.5 Ep. 3: 8.5 Ep. 4: 8.8 Ep. 5: 9.8 Ep. 6: 9.1 |
Ep. 1: — Ep. 2: 57 Ep. 3: — Ep. 4: 58 Ep. 5: 57 Ep. 6: 56 |
8 March - 12 April 1975 | 4E |
| Intercepted during a Transmat transfer, at the request of the Time Lords, the Doctor, Sarah, and Harry travel to Skaro just as the Daleks are being created where they try to change the history of the Daleks. | ||||||||
| 079 | 5 | Revenge of the Cybermen | Michael E. Briant | Gerry Davis | Ep. 1: 9.5 Ep. 2: 8.3 Ep. 3: 8.9 Ep. 4: 9.4 |
Ep. 1: 57 Ep. 2: — Ep. 3: — Ep. 4: 58 |
19 April - 10 May 1975 | 4D |
| the Doctor, Harry and Sarah find themselves on Space Station Nerva but millennia earlier when it was just a beacon for incoming and outgoing space ships, where a lethal infection is spreading through the crew. |
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