Transcript for Details about Pentagon's secret UFO hunters
We are back with that newly revealed ufo program's Pentagon. The government has spent millions investigating. And Nick watt has a closer look. Look at that thing, dude. Reporter: Just one of many alleged sightings investigated by the secret $22 million ufo unit run from the polling. . Look at that thing. It's rotating. Reporter: A real-life "X-files". I've seen things that I cannot deny. Reporter: Here's another what piles describe as a 40-not-long tic tac 100 miles off the California coast. I have never seen anything in my life that had the performance, the acceleration, keep in mind this thing had no wings. Reporter: Commander David favor piloting an f/a-18 on a mission that day in 2004. The radar gets jammed. No aircraft we know of can fly at those speeds, maneuver like that and looks like that. I think it was not from this world. I just know it was really impressive, really fast and I would like to fly it. Reporter: The Pentagon telling ABC news the advanced aviation threat identification program ended in the 2012 time frame. It was determined there were other higher priority issues that merited funding. So we always joke maybe it was trying to communicate with something under the water. I've seen "Star trek" with the whales. I don't know if it was alien life but I will say that in an infinite universe with multiple galaxies we know of, that if we're the only planet with life it's a pretty lonely universe. Reporter: Now there are often rational explanations but he hasn't heard one yet and according to sources quoted in "The New York Times" the military still listens to soldiers and sailors and airmen, still investigates what might be out there. I don't know. That visual, I'm not positive it's not the millennium falcon I saw. "Star wars" I saw and it looks like it rotating in the sky. That's my theory.
This transcript has been automatically generated and may not be 100% accurate.