They are the families of the missing in America.

Happy birthday, dear Tiger. Celebrating birthdays but without the guest of honor.

It's miss birthdays, miss holidays.

And they're desperately searching for answers.

Somebody knows where Tyler is, somebody knows something.

Every night, before I go to bed, I make him to come home.

In each episode, we will focus on one missing person's case and hear from the families, the friends, and the investigators, all determined to find them.

Why isn't this just another case?

She's a child.

I would like to one day to be able to bring her home.

That was the only thing going through my head at the time.

I have to find her.

Listen carefully, because just one small detail might allow you to solve a mystery.

Both dogs separately stopped where the trail ended in almost the exact same spot on the road.

The officer found the bag and found two cell phones in there.

We would look for anything that appeared to be freshly dropped.

It could be as simple as a candy wrapper.

And if you have a new tip,

investigators really need to hear it. At this point, a lucky 9-1-1-1-1-1-1-1-9-1-1-9-1-1-1-1-1-1-1-1-9.

At this point, a lucky break is what often happens.

We just need one person to come forward.

We have seen miracles happen.

...