Aliens have been abducting humans and living on Earth before the invasion, a professor has sensationally claimed.
Dr David Jacobs, a professor of history at Temple University in Pennslyvania specialising in Ufology, has said he's interviewed several alleged survivors.
He has written multiple books on alien abductions from the testimony he was gathered.
Dr Jacobs has set out his findings in the documentary Extraordinary: The Revelations during UFO Week on BLAZE.
And his conclusion is frightening.
He has claimed aliens are preparing to take over Earth, a conclusion he has come to based on their alleged abductions of humans from the planet, and subsequently utilising mind control, the DailyStar reports.
During the segment, he said: "We have spread around the world and conquered as much as we can…we don’t know whether this is true of other beings or not, but it certainly is true of what humans have done.
“My best guess – and this is a guess – is that yeah, they’re doing the same thing.
"This is what they do just like us.”
The professor went on to claim how he had spoken to multiple alleged abductees, who say the aliens had told them that in the future they would have a “job to do”.
Dr Jacobs also suggested that many abductees said they recalled being told the same instruction about "crowd control".
He explained: “When they get older they will be required to stand on the corner of a street.
"There will be a large number of people running down the street and your job is to say, just keep moving, everything will be okay."
Dr Jacobs further suggested that the abductees’ testimony began to change over time, and some have claimed they have seen human-like aliens on board the UFO.
He recalled: "What they were describing was that the ones on board who looked really, really human were coming down and trying to learn what it’s like to walk among us, to be human.
“At that point, I knew, it’s integration into society, prior to takeover…They can control us, and we can’t control them.
"They are superhumans, so to speak.
“Whether they are going to take over or not, they can control the human mind… I don’t know what’s going to happen after that, I fear the worst.
"I think that these beings on board UFOs have done this before.”
You can tune into UFO WEEK on BLAZE, Freeview 64 every night from 9pm.