When a couple are killed in an auto accident their bodies are immediately inhabited by extraterrestrial beings. Taking refuge in an underground cave, the aliens attempt to sabotage the U.S. space program.

Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast and although he sustains burns over 90% of his body, he survives. Then he begins to grow, but as he grows he starts losing his mind. By the time he stops he is 50 ft tall, insane and is on the rampage.

Aliens equipped with venomous claws invade a small town, but the town's teenage population is mobilized to fight the menace.

After WW2, a Los Angeles crime ring uses a complex scheme, involving a freight ship, a junkie, and a corrupt health officer, to smuggle drugs into the USA.

While on a fishing trip, Harry Baldwin and his family hear an explosion and realize that Los Angeles has been leveled by a nuclear attack. Looters and killers are everywhere. Escaping to the hills with his family, he sets about the business of surviving in a world where, he knows, the old ideals of humanity will be the first casualties.

A deranged scientist creates a ray that can shrink people down to doll size.

At the end of WWII, Nazi officials spirited the living head of Adolf Hitler out of Germany to a hiding place in the South American country of Mandoras, in order to revive the Third Reich at a later date. By the 1960s, the time has come, so a top scientist is kidnapped in order to help keep Hitler alive. This film is a re-edit of The Madmen of Mandoras released in theaters in 1963.