The Terrans, who look like humans, are extraterrestrials who have visited Earth, and periodically lived amongst us for thousands of years.
He has Terran Agents posing on Earth in various oc.
Aldon, the Commander of the covert Terran Earth Base, is assisted by androids and little grey clone \'workers\'.
They must also prevent us being infiltrated and invaded by their enemies the Xvars and Katons.
They have come back to help us learn to care for the planet and live in a more peaceful way.
The Terrans, who look like humans, are extraterrestrials who have visited Earth, and periodically lived amongst us for thousands of years