On the planet Alzarius in the alternate universe of E-Space, the Doctor, Romana and K9 find survivors of a crashed starliner, strange creatures lurking in the marshes and a genetic riddle which stretches back centuries.
Tom Baker
Lalla Ward
Matthew Waterhouse
John Leeson
George Baker
Score: 6.1
Score: 6.9
Score: 6.9
Score: 5.4
Score: 6.7
Score: 6.9
Score: 7.8
Score: 7.2
