It's a November morning in the desert around Buckeye, Arizona.

The sun is just peeking above the horizon, and the sky is blue with streaks of pink.

Dust covered trucks and ATVs arrive, using unpaved roads carved into the sand and stone.

The caravan passes the flat landscape dotted with low green shrubs, until it pulls up to

a cleared spot, and that's when people get out of the vehicles.

It's fall in much of America, but during the day it's still summer here.

The new arrivals are dressed for work, baseball caps to block out the sun, walking sticks,

digital compasses on their cell phones.

They are here to search the desert.

Morning everybody.

A coordinator wrangles the crowd.

Now the climbing sun is straight in the eye line of the people about to defiant.

Welcome to our latest search for Daniel Robinson.

Daniel Robinson is 25, and he's not where he's supposed to be.

I'm Josh Mankowitz and this is Missing in America, a new podcast from Dateline and NBC News.

We began examining the cases of the Missing in America as a digital series more than

eight years ago, with a question for our social media followers.

Do you know anyone who has simply vanished?

It turned out a lot of people did.

We heard from worried children and frantic parents, even from some who were total strangers.

All of them seeking answers about someone who wasn't where they were supposed to be,

someone who wouldn't just vanish, someone who was now in the wind.

...