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Kathy grows up barely knowing anything about her father.

I've never really had like a dad, so to know what that feeling is to actually miss.

You can't miss something that you've never had.

Sometimes she's bullied at school in Kenya.

Being mixed race, her skin is lighter.

Her hair is a different texture.

Her mom, Maggie, tells Kathy her dad was a soldier

and had been deployed to Afghanistan.

You know, she's young to understand

what could I have told her.

I just saw her. I think he's dead.

But after searching Facebook late into the night, Cathy learns the truth.

Well, part of it, and discovers her father is alive.

So I start scrolling and scrolling, and then all of a sudden I see someone with the same name as me.

And he was a soldier in the British army.

Kathy doesn't know it yet, but this marks the beginning of a nine-year quest to find her father.

A quest that will unite her with lawyers and DNA detectives across the world

and will reveal to her that she's far from alone in her search.

I even had a dream one time that he came here.

I had a dad dream with my dad.

And in that dream, he told me he loves me.

...