本片是一部英国剧情片，上映于1975-02-22，由Rodney Bennett导演，由Tom Baker/Ian Marter/Elisabeth Sladen主演。
剧情简介：The Doctor, Sarah and Harry arrive on a desolate and apparently deserted Earth to discover that a group of shipwrecked astronauts from a human colony, GalSec, have been lured there by a fake distress call. One of their number, Roth, tells Sarah of an alien conducting gruesome experiments on him and his crewmates. The alien turns out to be a Sontaran, Field-Major Styre, who is compiling a report on human physical and mental capabilities as a prelude to an invasion of Earth.
The Doctor challenges Styre to unarmed combat. The Sontaran agrees but is quickly weakened in Earth's unfamiliar gravity. Harry meanwhile enters Styre's ship and uses the Doctor's sonic screwdriver to remove the vital terullian diode bypass transformer, so that when the alien returns there to revitalise himself he is drained of all his energy and destroyed.
The Doctor sends a message to the Sontaran fleet, warning them that without Styre's report they cannot invade.
外文名：Doctor Who-The Sontaran Experiment
类型：剧情 / 科幻 / 冒险
地区：英国
导演：Rodney Bennett
编剧：Robert Holmes
演员：Tom Baker / Ian Marter / Elisabeth Sladen
