The Third Doctor and Sarah arrive in 1970s London to find it has been evacuated because dinosaurs have appeared mysteriously. It turns out the dinosaurs are being brought to London via a time machine to further a plan to revert London to a pre-technological level.
as The Doctor
as Sarah Jane Smith
as Brigadier Lethbridge-Stewart
as Mike Yates
as Sergeant Benton
as Sir Charles Grover
as Professor Whittaker
as Butler
as General Finch
as Mark
as Ruth
as Adam
as Lieutenant Shears
as Sgt. Duffy
as Corporal Norton
as Private Ogden
as R/T Soldier
as UNIT Corporal
as Private Bryson
as Robinson
as Lodge
as Looter
as Phillips
as Peasant
