The Time Guardian

A man confronts his past during an experiment that attempts to find a solution to the problems of a post-apocalyptic world caused by a world war.

Ripley, the sole survivor of the Nostromo's deadly encounter with the monstrous Alien, returns to Earth after drifting through space in hypersleep for 57 years. Although her story is initially met with skepticism, she agrees to accompany a team of Colonial Marines back to LV-426.

After their father is called into work, two young boys, Walter and Danny, are left in the care of their teenage sister, Lisa, and told they must stay inside. Walter and Danny, who anticipate a boring day, are shocked when they begin playing Zathura, a space-themed board game, which they realize has mystical powers when their house is shot into space. With the help of an astronaut, the boys attempt to return home.

Steffen Vogt, aged around 25, is helping out at a German archeological excavation in Israel when he finds a 2,000-year-old skeleton holding the instructions for a video camera dating from the year 2003. The bones also show traces of the present day. His theory of a time-traveler who made a video of Jesus is laughed at by everyone, however, including Sharon, an attractive Israeli woman he adores. Although no one appears to believe him, his find certainly seems to have generated interest: Steffen is attacked shortly afterwards in his hotel room by strange men; then he discovers that the German embassy and the secret service are after him; and when his friend Dan is murdered, he goes into hiding.

Fearing he'll never be a success, Barnaby Bates, a struggling LA comedy writer, pulls away from a blossoming romantic relationship with Rose, an empathetic young photographer, in order to focus on his career. Things get complicated when he's visited by a mysterious stranger from the future who warns that the world as Barnaby knows it will soon be coming to an end.

Marty and Doc are at it again as the time-traveling duo head to 2015 to nip some McFly family woes in the bud. But things go awry thanks to bully Biff Tannen and a pesky sports almanac. In a last-ditch attempt to set things straight, Marty finds himself bound for 1955 and face to face with his teenage parents - again.

The final installment finds Marty digging the trusty DeLorean out of a mineshaft and looking for Doc in the Wild West of 1885. But when their time machine breaks down, the travelers are stranded in a land of spurs. More problems arise when Doc falls for pretty schoolteacher Clara Clayton, and Marty tangles with Buford Tannen.

The Borg, a relentless race of cyborgs, are on a direct course for Earth. Violating orders to stay away from the battle, Captain Picard and the crew of the newly-commissioned USS Enterprise E pursue the Borg back in time to prevent the invaders from changing Federation history and assimilating the galaxy.

In the post-apocalyptic future, reigning tyrannical supercomputers teleport a cyborg assassin known as the "Terminator" back to 1984 to kill Sarah Connor, whose unborn son is destined to lead insurgents against 21st century mechanical hegemony. Meanwhile, the human-resistance movement dispatches a lone warrior to safeguard Sarah. Can he stop the virtually indestructible killing machine?

Set ten years after the events of the original, James Cameron’s classic sci-fi action flick tells the story of a second attempt to get rid of rebellion leader John Connor, this time targeting the boy himself. However, the rebellion has sent a reprogrammed terminator to protect Connor.

It's been 10 years since John Connor saved Earth from Judgment Day, and he's now living under the radar, steering clear of using anything Skynet can trace. That is, until he encounters T-X, a robotic assassin ordered to finish what T-1000 started. Good thing Connor's former nemesis, the Terminator, is back to aid the now-adult Connor … just like he promised.