AllMovie

Conrad Phillips, who has starred as William Tell in a popular British TV series produced by the same crew responsible for The Invisible Man, is here seen as military demolitions expert Barry Finch. While demonstrating a new and extremely sensistive bomb, Finch is trapped in a sand pit a few feet away from the explosive--which will instantly detonate if a shadow falls upon it. The only man in the world capable of rescuing Finch and defusing the bomb is also the only man who casts no shadow--namely, the invisible Peter Brady. This episode was cowritten by The Avengers' Brian Clemens, pseudonymously billed as Tony O'Grady.