Shows like Earth: Final Conflict

Dark Skies is an American UFO conspiracy theory-based sci-fi television series that aired from the 1996 to 1997 season for 18 episodes, plus a two-hour pilot episode. The success of The X-Files on Fox proved there was an audience for science fiction shows, resulting in NBC commissioning this proposed competitor following a pitch from producers Bryce Zabel and Brent Friedman. The series debuted September 21, 1996 on NBC, and was later rerun by the Sci-Fi Channel. Its tagline was "History as we know it is a lie."

The show takes place from 1944 to 2002 and follows the lives of three families: the Crawfords, who seek to cover up the Roswell crash and the existence of aliens; the Keys, who are subject to frequent experimentation by the aliens; and the Clarkes, who sheltered one of the surviving aliens from the crash.

A secret, high-technology international agency called SHADO defends Earth from alien invaders.

The Invaders, alien beings from a dying planet. Their destination: the Earth. Their purpose: to make it their world. David Vincent has seen them, for him it began one lost night on a lonely country road, looking for a shortcut that he never found. It began with a closed deserted diner, and a man too long without sleep to continue his journey. It began with the landing of a craft from another galaxy. Now, David Vincent knows that the Invaders are here, that they have taken human form. Somehow he must convince a disbelieving world that the nightmare has already begun.

After fully recovering from her near fatal bout of bionic rejection, Jaime Sommers, the first female cyborg, is assigned to spy missions of her own.

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.

Planet Earth is visited by an alien race. Initially, they seem friendly and kind, but over time, their intentions become quite clear. Their peaceful façade quickly turns, also showing their true colors and their real intentions...

A secret government organization made up of men provide intergalactic immigration services for Earth-bound aliens.

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.

Captain Scarlet heads up an international intelligence agency as they battle against the Mysterons, an alien species from Mars that vows vengeance after a misunderstanding with humans.

A freak accident during an experimental space mission catapults Astronaut John Crichton across a thousand galaxies to an alien battlefield.

A chronicle of the true top secret U.S. Air Force-sponsored investigations into UFO-related phenomena in the 1950s and ’60s, known as “Project Blue Book”.