An androgynous alien species called the Taelons arrive on earth, claiming to be companions of humanity, putting an end to crime, illness, and famine. Some are suspicious of the Taleons, and form a resistance movement. The resistance soon learned that the force that sustains the Taelons are breaking down, and they are using humans as test subjects in experiments to help save their species. The initial focus of the show was Commander William Boone and his partner, Captain Lili Marquette, who worked for both the Taelons and the resistance. After Boone was killed, the show introduced a new protagonist, Major Liam Kincaid, and began to play on the strengths of its ensemble cast. Written by Ronos

Frank Parker works with a special team of scientists and government officials on project Backstep. Using the Backstep device, Lt. Parker can travel back in time exactly 7 days. Once in the past, he reports in to base using code word Conundrum and carries out his mission to alter history for the better. Written by Anonymous

 داستان سریال در مورد یک تیم از محققان علمی متعلق به یک گروه علمی هستند که بر روی پدیده های ماوراء الطبیعه تحقیق میکنند.

In the near future, an organized crime group known as the Outfit has become a major force in America. Engineer Julian Wilkes develops a high-tech crime-fighting vehicle called the Viper, which is intended to be a flagship in a new crackdown on crime. The Viper needs a driver, so when Outfit driver Michael Payton is injured and captured, his memory is erased, and he is given a new identity as Joe Astor, MetroPol employee. The Outfit discredits the Viper project, but when it is canceled, Joe and Julian steal the Viper and strike out on their own private war against crime. Written by Marg Baskin

After his helicopter was shot down and his Army Special Forces team lost, sole survivor James Ellison spent eighteen months in the Peruvian jungle living with the Chopec. Five years later, Ellison is now a police detective assigned to the Major Crime unit in Cascade, Washington. Ellison developed hyperactive senses during his time in the jungle, which went away after his return to the US. While on stakeout in a remote forest area his heightened senses abruptly return. He can see people in darkened windows at night from two hundred yards, hear the music playing on the radio of the car he's chasing after he's lost sight of it, and can distinguish between wood and plastic after both have been in a three thousand degree fire. Blair Sandburg, a PhD candidate in Anthropology at Rainier University, tells Ellison that he is a Sentinel, who in ancient tribes would protect the village and seek out game using such hyperactive senses. Sandburg becomes Ellison's back-watcher/Guide and teaches him how to use his powers as Ellison brings a whole new edge to the war on crime in Cascade, Washington. Written by Jeff Cross , GateGabber

Darien Lambert, Captain of the Fugitive Retrieval Section in the 22nd century, time-travels to the 20th century to capture 22nd century criminals who have escaped by time-traveling. He is armed with a PPT, a 3-button weapon that can render a man unconscious or send a man to the 22nd century. He has a computer named Selma, disguised as a credit card. Selma helps him to capture the fugitives, for she has access to various databases, and can make logical conclusions. She has also many other functions. The main criminal is Mo Sahmbi, who invented the time machine (TRAX) and helped the criminals to get away. Lambert cannot go to the 22nd century until he has captured all the fugitives. Written by Guilherme Gama

Kwai Chang Caine was a priest at a Shaolin temple, where his son Peter also lived and studied. The temple was destroyed and father and son each thought the other had perished in the fire. For many years, Kwai Chang walked the earth, while Peter became a big-city cop. Finally, they are reunited and now together they battle evil, using wisdom, martial arts, and occasionally even Peters service pistol (only as a last resort). Written by Tad Dibbern

When Michael Wiseman is killed in a tragic subway accident, the U.S. government covertly makes him an offer he can't refuse; they keep his brain alive and place it into a new, genetically bio-engineered body. The doctor in charge of the experiment has grand plans for him, but all he wants is to get back to his grieving wife and daughter. For security reasons, the government forbids such contact...not that he is going to let that stop him. Written by Mandolin

A secret government project to create genetic mutants results in them being released into the general population. One of the scientists responsible, Adam, has sworn to try to help them, while his co-partner, Mason Eckhart, plans to use the project for his own ends. Adam assembles four mutants and forms the group Mutant X to help mutants everywhere, and oppose Eckhart. Written by

Who will protect you from the things that lurk in the dark corners of the world? Or, more importantly, who will protect the dark corner dwellers from you? Dr. Helen Magnus runs an organization called The Sanctuary, dedicated to the discovery, protection, and study of unknown species living virtually undetected amongst humans all over the world. This groundbreaking web series lasted only 8 short episodes (under 20 minutes each) before being purchased by SyFy Channel, rewritten, and re-shot as a full length series. (See Sanctuary (2008) for the SyFy TV series) Written by SciFiChick81

Darian Fawkes is a petty thief and conman who is bailed out of jail by his brother in return for undergoing an experiment that implants a quicksilver gland in his head that allows him to turn invisible. When his brother is killed, he ends up working for a top-secret government organization (disguised as the Department of Fish & Game) in return for a counter-agent which keeps the gland from driving him insane. Written by

Ally Walker stars as Dr. Sam Waters, a detective with the Violent Crimes Task Force, a federal agency which often works with the FBI, ATF, and other crime-solving agencies. The VCTF investigates and solves such crimes, and continually chases the elusive man known anonymously as Jack, who has haunted Dr. Waters for years. Written by Ari Herzog