() The whistleblower who claims there is a secret Pentagon program to amass pictures and videos of UFOs says he has seen video of a flying disc that floats into a camera frame before appearing “startled” and trying to evade the camera.

The description offered by Matthew Brown a former national security professional who stumbled on what says is a trove of UFO images comes in the latest installment of the “Weaponized” podcast.

“What do you mean it looked ‘startled’ what does that mean?” co-host Jeremy Corbell asks Brown in the interview segment posted this week.

“It’s just looking at an area over the ocean,” Brown replies. “This thing just comes trundling along, from underneath the cloud cover. It comes up, and then right when it’s almost center frame, it scoots off to the side and, like, tries to get out of being observed.”

Although Brown described the object, he did not provide video of the incident. But Corbell says he has seen the clip previously among several UFO videos that have leaked out.

“I’ve seen it a long time ago, way before I ever met Matthew,” Corbell told “Elizabeth Vargas Reports” Wednesday. “That is a piece of footage that, within the intelligence community, if they have access to the servers, is kind of famous.”

Brown has said he discovered the existence of “Immaculate Constellation,” a secret Defense Department program that compiles images of UFOs from military sources. He says he was rebuffed when he tried to alert superiors and has only recently identified himself publicly.

Asked by “Weaponized” co-hosts Corbell and George Knapp his opinion about UFOs, Brown tells the podcast he thinks “they” have been on Earth for “most of recorded history.”

“I think they’re both just as powerful as we think, but also less,” Brown tells the podcast. “And I think that there is not a single ‘they’ here.”