Devil's Triangle

A chief mechanic at a factory, haunted by apocalyptic nightmares, becomes a hero when Earth is invaded by a mysterious army bent on destruction.

After crash-landing on an alien planet, an asteroid miner must contend with the challenges of his new surroundings, while making his way across the harsh terrain to the only other survivor – a woman who is trapped in her escape pod.

A race of space vampires arrives in London and infects the populace, commencing an apocalyptic descent into chaos.

An alien similar to Ra appears out of the Stargate, killing five soldiers and kidnapping another, a year after the original Stargate mission. A new team is assembled, including some old members, and they go in search of the missing soldier in order to find out how Ra could still be alive. Meanwhile, the alien Goa'uld kidnap Sha're and Skaara, implanting them with symbiotes and making them Goa'uld hosts.