Broadcast: Saturday 28th December 1968
5:15pm-5:40pm BST (16:15 GMT) < > « »  < > « »
(actually broadcast at 17:15:54)
BBC One

Featuring: Dr. Who, Frazer Hines, Wendy Padbury

The Tardis materialises in a bleak wasteland. The Doctor and his friends encounter the primitive Gonds and hear of their mysterious unseen rulers, the dreaded Krotons. The Kroton seem benevolent - but the Doctor makes a terrifying discovery . . .