The Doctor and Adric learn from the wizened Keeper of Traken that a great evil has come to his planet in the form of a Melkur - a calcified statue. The Keeper of Traken is nearing the end of his reign and seeks the Doctor's help in preventing the evil from taking control of the bioelectronic source that is the keystone of the Traken Union's civilisation.
Unfortunately the movie Doctor Who: The Keeper of Traken is not yet available on HBO Max.
| Writing | Johnny Byrne | Writer |
| Directing | John Black | Director |
| Sound | Roger Limb | Original Music Composer |
| Production | Barry Letts | Executive Producer |
| Writing | Christopher H. Bidmead | Script Editor |
| Production | John Nathan-Turner | Producer |
| Visual Effects | Dave Chapman | Visual Effects |
| Visual Effects | Peter Logan | Visual Effects |
| Sound | John Holmes | Sound |
| Sound | Alan Fogg | Sound |
| Art | Tony Burrough | Production Design |
| Camera | Alec Wheal | Camera Operator |
| Crew | Dick Mills | Special Sound Effects |
| Costume & Make-Up | Norma Hill | Makeup Artist |
| Costume & Make-Up | Amy Roberts | Costume Design |
| Production | Alan Wareing | Production Assistant |
| Lighting | Don Babbage | Lighting Director |
| Editing | Rod Waldron | Editor |
