The TARDIS materialises on a deserted beach where the Doctor and his friends are captured by primitive warriors and taken to the fabled city of Atlantis.
Quest roles:
Anneke Wills(Polly), Michael Craze(Ben), Colin Jeavons(Damon), Joseph Fürst(Zaroff), Tom Watson(Ramo), Noel Johnson(Charles Grover M.P.), Catherine Howe(Ara), Graham Ashley(Overseer), Peter Stephens(Lolem)