The movie begins in the year 2032, when an expedition on Mars finds a buried egg that they take to the ship. The egg hatches, revealing a crystal and (presumably) a slimy creature that hides on the ship. After the astronauts decided to use the crystal on a large laser cannon, they all die when their air supply runs out.
On a remote planet, the Leprechaun attempts to court a princess named Zarina, in a nefarious plot to become king of her home planet. The two agree to marry, with each partner planning to kill the other after the wedding night in order to enjoy the marriage benefits (a peerage for the Leprechaun, the Leprechaun's gold and jewels for the princess) undisturbed.
Marshall Richard "Dick" Dix, a special detective, saves a fast food chain restaurant from a terrorist hostage situation, much to the displeasure of the police chief. He drives away, and back to the police station, where he meets his boss, who is with a police worker, Cassandra Menage. She retells her experience of the cloning of the President of the United States of America, Bill Clinton, who remains unnamed throughout the film. Dix is sent to the cloning facility, a moon base called Vegan. Dix causes a mayhem on the way there. He reaches Vegan, and is met by Lt. Bradford Shitzu at the security check. On the way to meet the main suspect in the cloning, Dr. Griffin Pratt, Dix experiences strange happenings throughout the colony involving certain Aliens who live there. During a very strange incident involving an Alien about to explode, Dix meets Capt. Valentino DiPasquale, with whom Dix will share his quarters. Dix and Shitzu get to Dr. Pratt's quarters, and talk to him. Shitzu leaves, and Pratt takes Dix on a tour of his cloning facility.
Four isolated astronauts in the lunar mining base Ark suffer a meteor storm. While inspecting the damage caused by the meteors, astronaut Ava Cameron discovers spores contained in one of the fragments and brings them back to the base for investigation. The medical officer discovers that these spores can grow rapidly, and in the process Ava is contaminated with them. Shortly afterward, Ava shows evident signs of a rapidly progressing pregnancy and, a few hours later, she goes into labor. The life form escapes the lab, and none of the others believe Ava's stories; they instead attribute her pregnancy to a cyst. The alien stalks crew member Johns, eventually taking his shape and killing him. Using notes posthumously left by Johns, Ava and Col. Brauchman attempt to kill the alien before it can kill them. Eventually, Ava and Brauchman prepare to abandon the base in an escape pod, but it is hijacked by the alien. Ava and Brauchman, having expended most of the base's remaining power to ready the escape pod, are resigned to their fates until a rescue ship arrives from Earth. Brauchman sends a message to Earth from the rescue ship, warning them to kill whatever they discover in the escape pod, but it's revealed that the alien has escaped.
Pour combattre le terrible virus DD-5, les chercheurs de la planète Phaebon pratiquent des expériences... très dangereuses. Steve Krieger, pilote spatial, intercepte un SOS en provenance de Phaebon. Il décide de s'y rendre, sans se douter qu'il se dirige tout droit vers la mort...
The third chapter in this science fiction series finds a space station in dire trouble after colliding with an old mining vessel that has been deserted...except for one murderous android!
On the surface of Mars, the Mars Rover is destroyed by an unknown source from the planet itself. Astronomer George Herbert (Howell) and his wife Felicity (Van Wyk Loots) are packing for a trip to Washington D.C. to celebrate their 10-year wedding anniversary. George's son Alex tries to spot Mars through his telescope, but actually discovers a meteorite entering Earth's atmosphere. George is called to work about the incident, and his wife and son leave early for Washington without him. As he drives to work, a crashing meteorite disrupts all technology in the area. An alien "walker" emerges from the meteorite and massacres the witnesses with a Heat-Ray, George barely escaping with his life. George decides to meet with his younger brother Matt in Hopewell before moving on to D.C., leaving as the aliens destroy his hometown.
Set in a future 1970, the United States is considering building bases on the Moon. Colonel Briteis (Donna Martell), Major Bill Moore (Ross Ford), and Doctor Wernher (Larry Johns) are sent to orbit the Moon to survey landing sites for future lunar missions. However, Dr. Wernher is an impostor whose mission is to destroy the US's Earth-orbiting space station, which he plans to do by colliding the rocket with the station on the way back from the Moon.
At a dinner party with their wives, NASA scientist Dr. Keith Ritchie (Tony Huston) reveals to his colleague Dr. Curt Taylor (John Agar) that he has secretly been in communication with a three-eyed, bat-winged alien from Venus named Zontar who he claims is coming to Earth to solve all of the world's problems. However, as soon as Zontar arrives on Earth via a fallen laser satellite it quickly becomes obvious that the skeletal black creature has a hidden agenda as it begins causing local power outages that stop telephones, automobiles and even running water from working and it starts taking control of people's minds using flying lobster-like "injecto-pods" that sprout from its wings. Only after his wife is killed does Ritchie finally realize that Zontar has come not as a savior but as a conqueror, and he goes to confront the hideous alien in the sulfur spring-heated cave that it has made its secret base.
In 1966 a U. S. military station in Houston, the United States Decoding Service (U.S.D.S.), NASA Wing, has intercepted a message. After decoding, the message contains only the cryptic statement: "Mars ... Needs ... Women".
Rocky Jones attempts to save the inhabitants of a planet about to collide with a moon. The empress of the planet, however, is suspicious. While Rocky and his crew finally succeed in evacuating the planet in time, Cleolanthe's pride and vanity are a major hindrance. Finally, however, as the last of the planet's population leaves, Cleolanthe arrogantly declares that she will stay behind. Her assistant, however, refuses to allow this, and literally picks her up and carries her on board Rocky's own ship. She watches in despair as the moon crashes into her planet, the two bodies destroying one another instantly. As the ship heads for the new home that has been chosen for her people, Cleolanthe finally realizes that she had been wrong, and that, as one of her underlings has stated, it is the people that make a nation, not the land itself. She finally reconciles with Rocky and his crew, and sincerely thanks them for their efforts in her behalf and that of her people. This marks the end of the character Cleolanthe in the Rocky Jones series. Succeeding episodes contain a new villain.