Transient Being

Transient Beings were evil entities in the British TV series Sapphire and Steel.

They appeared Assignment Six which was aired in 1982.

The location of the encounter was a gas/service station were time stood still. A mysterious couple from 1948 were seated inside the cafe then another man appeared from 1923. Another man from 1955 appeared, then Sapphire discovered they were sent to kill them.