No risk, no reward; on this special episode of "Tiny House Nation," John and Zack help fearless entrepreneurs roll the dice on going tiny.

In this retrospective, John and Zack create a tiny home away from home for three special families.

Thanks to John and Zack's renovation magic, we look back at three brave families get a new lease on life.

Big families, small spaces; in this special lookback, John and Zack help unconventional families squeeze in under one tiny roof.