The plan to destroy the entire human race is carried out by "pod people" made in the image of unsuspecting victims who have fallen to the aliens' nefarious plot.
Alien Abductions Explained
"The alien master plan is to destroy the puny Earthlings by bringing the 200 million year old corpse of Yonggary back to life and send it on a rampage. This makes no sense whatsoever. The aliens clearly have the technology and firepower to destroy Earth on their own, without having to re-animate and teleport ancient remote-controlled monsters. And we never learn why they came so far just to pick on Earth in the first place."
Reptilian
"So, the Alien's master plan is to take over a bad disco?"
MST3K Home Game x05 The Hidden II
"So the alien's master plan is..."
"Google."
"What, I should search on Google.com?"
"No, I'm saying that Google.com is in fact a product of alien technology. Think about it - a minimal front end, to disguise any failings in their ability to communicate with humans. Access to all of human learning, over the 'net - and more importantly, they can read how we relate to our information, by seeing what we look for."
"So by searching Google for 'nude Willow', I'm indirectly helping them take over the world."
"Yes."
Nearly Empty Rooms
"An Arkansas pledge caller complained that several minutes of a special on President Truman were silent. She not only complained but accused the station of being part of a conspiracy. "Don't you think it's odd that it went silent just as they started talking about MacArthur?" she asked me. I could have commented on how it was part of the alien master plan, since they didn't like MacArthur, but Lord Grobnich would punish me, so I just passed her concerns to the office."
Operators Standing By - Rampant Unbridled Stupidity in May 2001
"It's part of a cosmic masterplan. Aliens are acting as cosmic match makers - abducting people as children and watching them become friends and lovers in space. UFO investigator Bud Hopkins believes the repeated and systematic kidnapping of generations of the same family is part of an alien master plan."
United Kingdom UFO Network : May 19, 1997
Comment : Sounds like the plot for Taken.
"The alien organisation is posing as leading comedy theatre company Hoipolloi. Under this guise they will be co-ordinating the alien plot in the Congleton Area during May. These sessions will involve the possibility of extreme fits of laughter, which may become contagious."
Urgent Bulletin
"There is an alien race posing as humans and frequenting swingers clubs. They are gathering human samples to clone us and integrate themselves into our world to prepare for their master plan."
Gay alien Swingers...The wheels are already in motion!!!!
"As everyone knows, Elvis was kidnapped by Aliens in 1973 and replaced by a robotic substitute. Aliens like to interfere in human affairs. From his secret hideout in the South Pacific (shared by Princess Diana and Lord Lucan) he is organising a mass restructuring of popular culture by the secret brainwashing of thousands via subliminal messages on the internet. Expect the whole world to break out in a rash of Elvis Impersonators soon. How does this help the master plan? Well, it doesn't. My sources say that the Aliens will not be very happy when they check up on the situation; so, therefore, if you were going to move to the South Pacific: Don't."
Conspriacy Theory of the Week
