An island in the Mediterranean, 1984. Archaeologist Howard Foster raises a strange metal artefact from the sea floor. But how is it linked to the signal the TARDIS received? Why is Turlough suddenly so worried? And why is Kamelion acting so erratical... (more)ly?

Barbara Shelley, Dallas Adams, Edward Highmore, James Bate, Jonathon Caplan, Max Arthur, Peter Wyngarde, Simon Sutton