A jock sneaks into his supposed girlfriend's house with flowers for her. It is cold inside and when he approaches his girlfriend's room he finds a dead man with his mouth wide open. He then spots two more corpses.
Une fausse bande annonce sur une équipe de super-héros tant attendue au cinéma : Superman et Batman se réunissent, malgré leurs différences, pour s'affronter Lex Luthor et Double-Face.
Two huge interplanetary ships on an expedition into deep uncharted space receive a distress signal emanating from Aura, an unexplored planet. Both ships, the Galliott and the Argos, attempt to land on the surface of the fog-encased world. While entering the planet's atmosphere, the crew of the Argos becomes possessed by an unknown force and try to violently kill each other. Only Captain Markary (Sullivan) has the will to resist, and is able to force all of the others aboard his ship out of their hypnotic, murderous state.
Tom Campbell, a London Special Constable, is on patrol near a jewellery shop. Men are burgling the shop and Tom is struck down by their getaway driver before he can stop them. Running to what appears to be a police box to call for backup, Tom enters TARDIS, a time machine operated by its pilot, Dr. Who, with his niece Louise and his granddaughter Susan.
Workers building an extension to the London Underground at Hobbs End dig up skeletal remains. Palaeontologist Dr Matthew Roney (James Donald) is called in and deduces that they are the remnants of a group of apemen over five million years old, more ancient than any previous finds. One of Roney's assistants uncovers part of a metallic object. Believing it to be an unexploded bomb, they call in an army bomb disposal team.
Stitch is having a nightmare about turning bad again and causing destruction to Earth, including hurting Lilo. After Stitch wakes up, Lilo comforts him by telling him she knows he would never cause harm to her. Lilo also tests his goodness level by having him do a few good deeds. Discovering that they are late for hula class, they use their hovercraft to get there.
A young alien, Stu, is inside a spacecraft taking an examination in alien abduction. He must snatch a sleeping farmer named Ernie under the watchful eye of his impassive examiner, a gelatinous blob named Mr. B. Working from memory, Stu is expected to use an array of thousands of identical unlabeled toggle switches for this purpose and Mr. B gives no hints of which one(s) to use.
In 2069, the unmanned Sun Probe locates a planet lying on the same orbital path as Earth on the opposite side of the Sun. Dr Kurt Hassler (Herbert Lom) of the European Space Exploration Council (EUROSEC) has been relaying the spacecraft's flight data to a rival power in the East; after tracing the transmissions to Hassler's laboratory, Security Chief Mark Neuman (George Sewell) catches the scientist in the act and kills him. EUROSEC director Jason Webb (Patrick Wymark) convinces NASA representative David Poulson (Ed Bishop) that the West must be the first to send a mission to investigate the planet. With EUROSEC member states France and Germany unwilling to provide financial support, Webb obtains majority funding from NASA; American astronaut Colonel Glenn Ross (Roy Thinnes) and British astrophysicist Dr John Kane (Ian Hendry), the head of the Sun Probe project, are assigned to the mission.
The actions once again take place in the small French town of Saint-Tropez. While driving with one of his gendarmes, Cruchot (Louis de Funes) has to stop in order to fix the car. The gendarme wanders away and sees a flying saucer in a field which then flies away. He tries to tell Cruchot and the rest of the station, but they don't believe him. Shortly after, the same occurs with Cruchot and the chief of the gendarmes. This time it is Cruchot who wanders away and sees the saucer, however the chief does not believe him. Later on, when the same gendarme is doing paperwork in the office, a young man appears in front of him and says that he is a part of an alien expedition which has arrived to Saint-Tropez in order to examine humanity as people from all around the globe go to Saint-Tropez during the summer. The alien demonstrates its shapeshifting ability by transforming into the same gendarme it is talking to. The gendarme runs and tells Cruchot, who doesn't believe him. In the midst of the racket, the chief comes and sends the gendarme away. The chief reveals that he is actually an alien disguised as the chief, and when Cruchot doesn't believe him the alien becomes agitated and uses laser vision to cause damage to Cruchot's room. He relents when a watch on his hand flashes red and drinks something out of a flask. The alien begins coughing and upon hitting it on the back, Cruchot discovers it makes a metallic sound. Later on when the real chief arrives, Cruchot stabs him with a screwdriver thinking that it is the alien. The chief orders Cruchot out, since the supervisor will come in tomorrow to check up on the station. During the check up, Cruchot notices the same watch on the supervisor as on the alien he saw last night and attempts to attack him. The gendarmes hold him back while the alien supervisor flees, and the real supervisor arrive. Cruchot once again stabs the real supervisor thinking he is an alien. He is arrested, but escapes the station.
Julio (Julian Villagran) wakes up one morning in an apartment, unable to remember what happened the night before. He barely has a chance to speak to the girl he spent the previous evening with, Julia (Michelle Jenner), when it becomes clear there is an alien spacecraft hanging over the city.
On a desolate planet, a team of 12 Xeno project scientists are conducting an archaeological excavation of the ruins of an ancient civilisation. Shortly after an underground tomb network is found to contain crystals and wall inscriptions, photographer Dean White (Dominic Jephcott) is engulfed in a rock blast and left incapacitated. Deciphering the alien language in the caves, xenolinguist Mitch (Trevor Thomas) theorises that the civilisation was built on the concept of dualism: the planet orbits a binary star, and a pair of twins seems to have ruled the race that once inhabited it. Medical assistant Sharon (Heather Wright) discovers that an energy field surrounds the crystals, which causes her to deduce that a "chemical intelligence" controlled life on the planet.
Une expédition arrive sur Mars et découvre des Martiens pacifistes. La fille du leader martien accepte de les accompagner sur la Terre pour délivrer un message de paix.
When a mysterious beam of light starts disrupting and destroying the Earth's atmosphere, Flash Gordon (Larry "Buster" Crabbe), Dr. Zarkov (Frank Shannon), and Dale Arden (Jean Rogers) - accidentally accompanied by wisecracking reporter Happy Hapgood (Donald Kerr) - swing into action in Zarkov's rocketship, believing that it could be coming from the planet Mongo. Once in space, however, they discover that the ray is originating from Mars.
Astronomer Cyrus Layton is working late one night on his new airplane design in his observatory. He witnesses what he believes is a meteorite landing in the far distance. He contacts his niece Sheila and asks her to bring Craig Foster to the observatory to help analyze his discovery; he then sets out to search for the meteorite crater. Layton instead discovers a crashed spaceship; the ship's pilot emerges and explains that he is from the planet Mars.
Martian invader, Mota (Gregory Gaye), attempts to conquer the Earth as Mars is worried about its use of new atomic technology. They consider that it would be much safer, and beneficial for both Earth and Mars, if the Martians were in charge. Mota, having been shot down by an experimental ray gun, blackmails American scientist, and former Nazi, Dr. Bryant (James Craven) into assisting him and hires some criminals to be his henchmen.