A mysterious object is sighted heading towards Earth and causes panic. But what is the nature & origin of the object, and how can it be stopped? Series Directed by Daphne Shadwell ... (6 episodes, 1965)
The World in Fear
Flight from Danger
There was a follow up series the next year, 1966, called
OBJECT Z RETURNS (1966)
Following events from "Object Z" Professor Ramsay is released from prison to help deal with three more mysterious objects which are hurtling towards Earth... only this time, they are what they seem - alien craft bent on a mission deadly to mankind!