It was Father's Day weekend back in 1969.

The Martin family had a tradition of hiking around the Tennessee, North Carolina border.

There were four of them, camping overnight.

William Martin, Clyde Martin, and two boys out there, with very few people around.

And while they were playing, the boys decided to prank the adults

by hiding and then popping out to scare them. One of them went out toward the bushes while the

other, Dennis, went the other way. It was never seen again.

Meanwhile, in Cade's Cove, several miles away, another family from Tennessee was out in

the mountains and went home, completely unaware that there was a search going on nearby.

But once the father, Harold Key, heard about a missing boy, he called the authorities to tell

them that he had heard a scream and saw a figure running through the woods.

His son was the one who spotted it first and thought that it was just a bear.

But Harold, upon taking a closer look, Saul would appear to be a, quote, dark-figured,

rough-looking man trying to hide behind a thicket.

We just have to ask,

had a wild man taken Dennis Martin?

The police said that it was too far for it to have been connected to the missing boy,

but still, we'll never know.

As the years went by, this story of Dennis Martin became connected to the existence of feral

humans, which are people that live out in the wild without any connection to the

civilized world.

And out there, the Great Smoky Mountains National Park area, people claim to have spotted

...