UNIT investigates when scientists go missing kidnapped by an alien trapped in the 13th Century. Travelling back in time in the TARDIS, the Doctor is unaware that he has stowaway.
- Drama
- Year 1973
- 24 min
Beloved companion Sarah Jane Smith, played by Elisabeth Sladen, makes her first appearance and so do the Sontarans in the form of Linx, trapped on medieval Earth and abducting scientists from the future to aid his escape.
- Year: 1973
