A six-year-old boy stands in the yard of a small house in Elizabethton, Tennessee, throwing a baseball against a brick wall — over and over, alone — because his dad is on the road and his mom is lost in the glow of a CB radio. Nobody is coming to play catch.

That boy grew up to become the largest hot tub manufacturer on American soil. No investors. No trust fund. No blueprint. Just stubbornness baked into the red clay of Carter County and a refusal to stay down.

Tested in Tennessee is the story of David Hatley, a self-made entrepreneur who clawed his way from a childhood defined by his father's infidelity, his mother's alcoholism, and his own brushes with the law to building a manufacturing empire that ships products all over the world.

Tested in Tennessee is also the story of a mother who died trying to get sober. Of two marriages that didn't make it and a third that changed everything. Of a man who still lives just a few miles from the hollow where he grew up. Because no matter how far you climb, your roots come with you.

For listeners who loved Shoe Dog, Hillbilly Elegy, and Sam Walton: Made in America, this is the next great American business memoir: raw, funny, deeply personal, and unmistakably Southern. It's a story about what happens when you stop waiting for someone to throw you the ball and start building the whole damn field yourself.

David Hatley has been tested by life, by loss, and by business. Tennessee is better for it.

And he's not done yet.