The Mark of Archanon
- Episode aired Oct 16, 1976
- TV-14
- 1h
Alan finds father-and-son aliens in hibernation in a lunar tunnel, who have a viral "killing sickness".Alan finds father-and-son aliens in hibernation in a lunar tunnel, who have a viral "killing sickness".Alan finds father-and-son aliens in hibernation in a lunar tunnel, who have a viral "killing sickness".