Arc of Infinity (4)

Jan 12, 1983 on BBC One at 5:15 PM
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Summary

The Time Lords of Gallifrey are disturbed by the possible return of an old enemy... and the only way to stop him is to execute the Doctor.

Previous episode

Arc of Infinity (3)
Season 20 Episode 3

Jan 11, 1983

Next episode

Snakedance (1)
Season 20 Episode 5

Jan 18, 1983

Guest stars

Alastair Cumming, Andrew Boxer, Elspet Gray, Guy Groen, Malcolm Harvey, Max Harvey, Maya Woolfe, Neil Daglish