Space: 1999 Season 1 Episode 21
Space Brain
An Eagle and its crew are crushed to death by an enormous energy field in space. When one of Alpha's astronauts is possessed by the anomaly, he tells them the energy field is a living space brain, which responded to the 'threat' with antibodies Finding the Moon on a collision course with the Brain, the Alphans make plans to avoid the same fate as the Eagle.
- 1 - 24The Last EnemyFeb. 19, 1976
- 1 - 23The Testament of ArkadiaFeb. 12, 1976
- 1 - 22The Troubled SpiritFeb. 05, 1976
- 1 - 21Space BrainJan. 29, 1976
- 1 - 20Missing LinkJan. 22, 1976
- 1 - 19Ring Around the MoonJan. 15, 1976
- 1 - 18The Infernal MachineJan. 08, 1976
- 1 - 17The Last SunsetJan. 01, 1976
- 1 - 16Another Time, Another PlaceDec. 18, 1975
- 1 - 15The Full CircleDec. 11, 1975
- 1 - 14EarthboundDec. 04, 1975
- 1 - 13Matter of Life and DeathNov. 27, 1975
- 1 - 12End of EternityNov. 20, 1975
- 1 - 11Guardian of PiriNov. 13, 1975
- 1 - 10Black SunNov. 06, 1975
- 1 - 9Mission of the DariansOct. 30, 1975
- 1 - 8Dragon's DomainOct. 23, 1975
- 1 - 7Alpha ChildOct. 16, 1975
- 1 - 6Voyager's ReturnOct. 09, 1975
- 1 - 5Death's Other DominionOct. 02, 1975
- 1 - 4War GamesSep. 25, 1975
- 1 - 3Collision CourseSep. 18, 1975
- 1 - 2Force of LifeSep. 11, 1975
- 1 - 1BreakawaySep. 04, 1975