The TARDIS arrives on Earth in a new ice age. The travellers make their way into a base where scientists, commanded by Leader Clent, are using an ioniser device to combat the advance of a glacier.
as The Doctor
as Jamie McCrimmon
as Victoria Waterfield
as Clent
as Penley
as Miss Garrett
as Storr
as Davis
as Arden
as Walters
as Voice of the Computer
as Varga
as Zondal
as Turoc
as Isbur
as Rintan
