All the teams must "smell" their way to victory competing in a blind folded challenge. A door opens, and Maria's life is changed forever. Kaley and Kristin connect with their family at a recording studio. Marcus meets his mom's brother for the first time.

The teams show off their singing abilities. Strange paper airplanes are made to pop through a challenge. Marcus meets the person who linked him to his father. Elizabeth discovers her dad's side of the family. Team Black finds out twins run in their family.