二次大战期间，英国与德国为了找寻位于非洲，传说中"迷失城市"里的大笔钻石宝藏而互相较劲，前任庞德女郎莫德亚当斯饰演美艳的德方领队萝拉，山姆琼斯Sam J. Jones则饰演美国冒险家"丛林杰克"，协助美丽的英国女特派员珍抢夺宝藏。本片改编自英国知名冒险漫画，充满异国风情的场景和精彩的动作，彷佛「法柜奇兵」及「魔宫传奇」中的结合，将带给我们如云霄飞车般上冲下俯的刺激感！

维基：

This season featured the first ever UNIT story, The Invasion, which showcased the return of Brigadier Lethbridge-Stewart. It also featured the first official appearance of Time Lords and the as yet unnamed Doctor's home planet (another member of Susan and the Doctor's race, the Monk, had appeared previously, but without much elaboration and without using the term "Time Lord"). It also marked the tenure of Patrick Troughton as the Second Doctor. It consisted of seven serials and forty-four episodes, including two epic-length storylines: the eight episodes of The Invasion and the ten-episode The War Games.

When his brother disappears, Robert Manning pays a visit to the remote country house he was last heard from. While his host is outwardly welcoming, and his niece more demonstrably so, Manning detects a feeling of menace in the air with the legend of Lavinia Morley, Black Witch of Greymarsh, hanging over everything.