The Lambda Factor
Psychic powers amplified by a space phenomenon threaten Moonbase Alpha.
"The Lambda Factor" is the seventeenth episode of Space: 1999's second series, the forty-first episode overall. Terrance Dicks wrote the screenplay, and Charles Crichton directed. The final shooting script was completed on 6 August 1976, with revisions made on 2, 15, 27, 28, and 29 September, and 5 October 1976. Filming for live action ran from 29 September to 15 October 1976.
Moonbase Alpha experiences random disturbances. Commander Koenig suffers recurring nightmares where a woman's ghost accuses him of killing her. Technician Sally Martin, distraught over a broken engagement, is crushed to death by a wind with no apparent source while inventorying supplies. Suspicion falls on her ex-fiancé, Mark Sanders, and his new partner, Carolyn Powell. Powell becomes a prime suspect after it is discovered she has been testing a device that projects pressure waves.
The Moon nears a gaseous formation filled with charged particles. In the recreation room, Carl Renton, known for bad luck, wins seventeen games of chance in a row; his opponent accuses him of cheating and a fight breaks out. Meanwhile, the Eagle fleet is grounded by malfunctions. Engineer Pete Garforth vents his frustration to Captain Carter, who then becomes locked in the workshop. An atomic device activates and threatens to explode until Maya, passing by, shapeshifts into a gorilla to break in and deactivate it.
Koenig explains his nightmares to Dr. Russell. Years earlier, he was part of a team that found a space station's crew dead from an alien disease. To contain the infection, the station was quarantined, but Koenig's friend Sam and Sam's fiancée Tessa had already been exposed and were left to die. In the present, Sanders ends his relationship with a distraught Powell. Shortly after, a blast of air pulps his body as Powell watches.
Instruments detect electrical activity resembling "lambda" brainwaves. Russell identifies this as the lambda variant, a rare pattern known to parapsychologists. It is amplifying psychic abilities in certain sensitive individuals on Alpha. Three sensitives—Renton, Powell, and Dr. James Warren—show exceptional power that could harm others. Believed to include the killer of Martin and Sanders, these three are placed in a force field strong enough to block the variant. Powell alone continues to display paranormal ability, breaking out of the field, taking over Command Cente
- Episode number
- 41st overall, 17th of series 2
- Writer
- Terrance Dicks
- Director
- Charles Crichton
- Final script date
- 6 August 1976
- Filming dates
- 29 September – 15 October 1976
- Regular cast
- Listed in source article
Lore & Background
The plot involves Moonbase Alpha plagued by intermittent disturbances. Commander Koenig has nightmares of a woman accusing him of killing her. Technician Sally Martin is crushed to death by a sourceless wind. Suspects include her ex-fiancé Mark Sanders and his new lover Carolyn Powell, who has been experimenting with a device that projects pressure waves. The Moon approaches a gaseous formation filled with electrically-charged particles. Carl Renton wins 17 games of chance in a row; Pete Garforth sabotages Eagles due to fear of flying; Powell becomes a killing force. Koenig confronts Powell in a wordless battle of wills; Powell is defeated and her mind emptied. The gaseous formation vanishes.
The lambda variant brainwave pattern is identified, amplifying psychic abilities only in certain sensitive individuals on Alpha. Three sensitives—Renton, Powell, and Dr. James Warren—are placed in a force field to contain their powers.
Reader's Guide
The episode is notable for its exploration of psychic phenomena within the Space: 1999 universe. It features a rare lambda brainwave variant that amplifies hidden aspects of the psyche. The production involved a chimpanzee that proved troublesome, refusing direction and distracting actors. The recreation room set built for this episode was reused in the following instalment, "The Seance Spectre." The score was re-edited from previous incidental music by Derek Wadsworth, primarily from "One Moment of Humanity" and "Space Warp." Reception was mixed: TV Zone gave a favourable review, calling it "hugely enjoyable"; SFX magazine rated it A-minus but found the gorilla-Maya "laughably unconvincing"; Dreamwatch Bulletin was critical, calling it a "bit of a shambles." The episode was novelised by Michael Butterworth in 1977 as The Psychomorph, which introduced a non-corporeal space amoeba as antagonist.
Did You Know?
- The final shooting script is dated 6 August 1976, with amendments dated 2 September, 15 September, 27 September, 28 September, 29 September and 5 October 1976.
- The chimpanzee performer was considered the most troublesome animal the crew worked with, after lions, panthers and falcons.
- The large recreation room set assembled for this episode also appeared in the following instalment, 'The Seance Spectre'.
- The episode was novelised as The Psychomorph by Michael Butterworth in 1977, which added a non-corporeal space amoeba as the antagonist.
More in Space: 1999 episodes 1-24
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