Four teams kick off Season 11 with a heavy equipment challenge. Team Red's Thaddeus gets a huge surprise a the first door he knocks on. Nolin from Team Green learns key information about his adoption.

Thaddeus sees a picture of his birth mother for the first time. Tia meets a sister. Jon experiences a flood of emotions after meeting a brother.

Tia and Carolen (Team Black) have a major setback. Nolin meets his birth father. Kentrelle opens his heart as two new family members welcome him with open arms.

Emotions run high as the race reaches the halfway point. Carolen meets a sister with knowledge about their family. Nolin learns the truth about the circumstances surrounding his adoption.

Tia (Team Black) sees pictures of her mother for the first time. Kentrelle (Team Blue) struggles with new information about his birth mother. Thaddeus (Team Red) is surprised when he meets a special relative.

Jon (Team Blue) meets a relative he's been waiting to meet his whole life. Nolin (Team Green) discovers more siblings. Tia (Team Black) finds out about her long-lost brother.

Thaddeus (Team Red) returns to his hometown to find a deep connection. Nolin (Team Green) seems to meet his twin. Carolen (Team Black) meets her father while Kantrelle (Team Blue) finds out how much he has in common with his birth mom.

Tia (Team Black) meets a long lost sister while Jon (Team Blue) adds a third brother to his list of family. Nolin (Team Green) has an emotional moment when he finally meets his mother and Thaddeus (Team Red) meets his mother at a hospital.

In the season finale, three teams suit up for the ultimate challenge at a fire fighter training facility. Things get hot as teams compete to put out a blaze as the teams compete to conduct a rescue in a three story building to win the grand prize.