Les Tremayne

The residents of a small town are excited when a flaming meteor lands in the hills, until they discover it is the first of many transport devices from Mars bringing an army of invaders invincible to any man-made weapon, even the atomic bomb.

Eric Carter of United Nation News is joined by Dr. Arnold Johnson as a prehistoric monster emerges from hibernation while a pharmaceutical company seeks publicity with their own monster.

Starship C57D travels to planet Altair 4 in search of the crew of spaceship "Bellerophon," a scientific expedition that has been missing for 20 years, only to find themselves unwelcome by the expedition's lone survivor and warned of destruction by an invisible force if they don't turn back immediately.

Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.