VIDEO: Sneak Peek - Lea Michele Uncovers Family History on WHO DO YOU THINK YOU ARE?

This Sunday, May 1 TLC wraps up the current season of WHO DO YOU THINK YOU ARE? with two brand new back-to-back episodes.

First at 8/7c actor Chris Noth tracks down family torn apart by a devastating disaster. He follows his relative's trail from Spain to Ireland, and finds a man who endured harsh oppression, but rose up to fight in one of the fiercest battles of all time and became a war hero.

Then at 9/8c actress Lea Michele (GLEE) goes on a journey to unravel the secrets of her Jewish ancestry. She uncovers the heartbreaking and inspiring details of her great-grandmother's story, who fled one country but was shunned by the next. She finds personal accounts of her great-grandparents, who were desperate to be together despite the cards being stacked against them, and she discovers ancestors who suffered devastating loss.