Season 13 kicks off medieval style in Nashville, Tennessee with new faces, new cars, and new rules. Abe (Team Blue) and Ashlee (Team Black) both meet their brothers, but Abe gets devastating news.

Fueled by yesterday’s defeat, Team Green fights to get back in the competition. Team Red and Team Blue go head-to-head in Deerfield, Illinois. Ashlee (Team Black) discovers an uncanny resemblance to her grandmother.

Team Green gives the other teams a penalty as Team Red struggles to stay in the race. Team Black meets an extra special relative. Jo (Team Green) meets her grandfather and Justin (Team Red) meets his sister who gives him disappointing news.

Teams Green and Red work to communicate better. All teams play chicken with a new set of challenges. Ashlee (Team Black) and Jo (Team Green) meet family members that have been waiting for them their whole lives.

The halfway point finds Team Blue with a crucial advantage over the other teams. Justin finds a close relative, Ashlee finds more information about her mother, and both Jo and Eric find siblings.

Teams Green and Black get freaked out at the challenge. Justin finds a first cousin and Ashlee discovers a niece. Eric has multiple life-changing moments, including learning his father's name.

Jo has a surprise birthday party! Day 7's challenge is out of this world. Abe meets his first relative from his mother's side of the family. Jo and Justin both find new siblings. Ashlee and Brennan meet cousins who share home videos.

James receives a letter he never expected while Team Blue is excited to head into Manhattan. Today's challenge is the toughest one yet. Jo, Justin, and Ashlee all meet new sisters. Abe and Eric race to a Manhattan rooftop to meet Eric's cousin.

All the Teams are anxious to find out who will be heading to Day 10. Ashlee reads the final passages of her mom’s journal. Jo meets her younger brother while Justin meets his nephew. Eric finally meets his mother. The day ends with a big surprise!

On the final day of Relative Race, each team is looking to secure the grand prize. Team Red has renewed strength after finding out they made it to Day 10. After a series of medieval-themed challenges, Dan reveals the winner of Season 13.