Babylon 5 - Point of No Return

At Deep Space Nine, a space station located next to a wormhole in the vicinity of the liberated planet of Bajor, Commander Sisko and crew welcome alien visitors, root out evildoers and solve all types of unexpected problems that come their way.

Crusade is an American spin-off TV show from J. Michael Straczynski's Babylon 5. Its plot is set in AD 2267, five years after the events of Babylon 5, and just after the movie A Call to Arms. The Drakh have released a nanovirus plague on Earth, which will destroy all life on Earth within five years if it is not stopped. To that end, the Victory class destroyer Excalibur has been sent out to look for anything that could help the search for a cure.

With the Ancients' city of Atlantis discovered in the Pegasus Galaxy by Stargate Command, Dr. Elizabeth Weir and Major Sheppard lead a scientific expedition to the ancient abandoned city. Once there, the team not only find themselves unable to contact Earth, but their explorations unexpectedly reawaken the Ancients' deadly enemies, The Wraith, who hunger for this new prey. Now with the help of newfound local allies like Teyla Emmagan, the Atlantis Team sets about to uncover their new home's secrets even as their war of survival against the Wraith begins.

Two centuries in the future, when pollution has forced humans to abandon Earth in favor of cramped space stations, scientist Devon Adair hijacks a spacecraft and sets out with a band of followers in search of another planet that will offer a brighter, more normal future to children like her son, Ulysses. Joining Devon and Ulysses are mechanic John Danziger and his daughter, True; team physician Julia Heller, who has her own secret agenda; Alonzo Solace, a pilot; Yale, a cyborg; and Morgan, a craven government agent, and his wife, Bess. The voyagers find their planet, but their ship crash-lands on the wrong side of the globe, forcing them to attempt an arduous and dangerous trek to their ultimate destination, New Pacifica.

Years ago, the Taelons came to Earth, offering friendship and technology to humanity. But there are those who believe the Taelons have more sinister motives.

When the 12 Colonies of Man are wiped out by a cybernetic race called the Cylons, Commander Adama and the crew of the battlestar Galactica lead a ragtag fleet of human survivors in search of a "mythical planet" called Earth.

Pulled to the far side of the galaxy, where the Federation is 75 years away at maximum warp speed, a Starfleet ship must cooperate with Maquis rebels to find a way home.

In the year 2517, the universe is a vast frontier where lawlessness reigns and adventure awaits! Join Captain Malcolm Reynolds and his ragtag crew aboard the spaceship Serenity as they navigate the fringes of society, battling the oppressive Alliance and facing off against ruthless bounty hunters.

Set in the years 2063–2064, the show focuses on the "Wildcards", members of the United States Marine Corps Space Aviator Cavalry, 58th Squadron. They are stationed on the space carrier USS Saratoga, and act as infantry and pilots of SA-43 Endo/Exo-Atmospheric Attack Jet fighters.

The peaceful alien invasion of Earth by the mysterious “Overlords,” whose arrival begins decades of apparent utopia under indirect alien rule, at the cost of human identity and culture.