Routine tests on a traffic accident victim lead to shocking discoveries when the man's blood is found to be unidentifiable and x-rays reveal a disc embedded in his brain. His fabulous tale of being an escaped prisoner from an alien spaceship takes a turn for the sinister when the hospital staff realise that they're under a state of siege...
- Genre: Science Fiction
- Studio: Merton Park Studios
- Keyword: spacecraft, england, woods, alien, hospital, alien invasion, trapped, spaceship crash
- Cast: Edward Judd, Yoko Tani, Valerie Gearon, Lyndon Brook, Ric Young, Tsai Chin