The Cetacean is called upon to recover a space probe that crashes in the sea, and Mark soon learns that the probe is covered with thousands of tiny alien beings. They intend to learn all they can about the human race by invading host bodies and controlling them. Mark must return them to space before they destroy all humanity.

Genres

Cast

Patrick Duffy

Mark Harris

Belinda Montgomery

Dr. Elizabeth Merrill

Kenneth Tigar

Dr. Miller Simon

Alan Fudge

C.W. Crawford

Fred Beir

Captain Bracy

Carole Demas

Pamela

Ivan Bonar

Edwin Shirley

James B. Sikking

Colonel Manzone

Erik Holland