Exposed (UFO)
"Exposed" is the second episode aired of the first series of "UFO" - a 1970 British television science fiction series about an alien invasion of Earth. The screenplay was written Tony Barwick and the director was David Lane. The episode was filmed between 13 May to 23 May, 1969 and aired on the ATV Midlands network on 23 September, 1970. Though shown as the second episode, it was actually the fifth to have been filmed.
UFO (TV series)
Only two of the alien suits were made, so at no point in the series are more than two of the aliens seen on screen at any one time. In the episode "Ordeal", Paul Foster is carried by two aliens while he is wearing an alien space suit, but one of those two aliens is always off-screen when Foster is on-screen.