Overview

Time itself is in peril! The Time Lords and UNIT find themselves besieged by a mythic figure from the Time Lords' past hell-bent on destruction. The only way to defeat him is to break the First Law of Time and let the Doctor help himself — literally...

Details

Cast

Jon Pertwee

Patrick Troughton

William Hartnell

Katy Manning

Nicholas Courtney

John Levene

Stephen Thorne

Rex Robinson

Roy Purcell

Laurie Webb