The overall theme for this season is "Heroes". The beginning of the new season starts with a double episode. The Jackson Family live in Maryland. A single mother of four made a promise to keep her 10 nieces and nephews with her rather than see them go into the foster care system. The EM:HE have to build a home for 15 people to live in.

A family in West Chester Ohio need the help of the EM:HE team this week. Four of the Five family members have potentially life threatening illnesses. Two members of the family have Crohn's Disease and two have Spinal Muscular Atrophy. The 8 year old wheelchair confined Brooke is a cheerleader and the hero of this episode.

Ty and the team set to work on a house where a widow and her four kids reside. As the family head off on a vacation, Ty sets to work on creating their dream home. This week the team are in Wisconsin and the hero is the widow who has been a teacher for 29 years.

The Kings help to run a daycare centre for their whole comunity, but their own home is in tatters. Ty and the crew help to rebuild their home after they have given up so much time to help others.

Bigelow, Arkansas - A family consisting of a church deacon and a young boy who has battled leukemia, are about to have their lives turned around by a new renovation. The Hero for this week's show is 10 year old Job

Ty and the gang travel to Geneva, NY to renovate the Hill family's 200 year-old farm house, enabling them to keep and improve their boxing gym for underprivileged teens.

Shrewsbury, Missouri (just outside St. Louis) is today's location as Ty makes a home safer for two twins that have birth defects, and they makeover a coffee shop for a man who has cerebral palsy. There are two heroes in this episode. The first is Dawn Martirez who was a much loved Pediactric nurse working with babies and children diagnosed with terminal illnesses. Now she cares for her twin boys. They both have extremely rare genetic conditions. One called 9P minus, and the other is Crouzon Syndrome. The other hero is Sam Malek who has cerebral palsy and employs differently abled individuals to help him in his coffee shop, from which a portion of the profits go to local charities. He hopes that the training will bring some confidence and independence to the people he employs

Ty and his crew set to work on restoring a house that is home to 13 family members, but it can no longer cope with so many people.

A respected nurse, a gifted craftsman and an environmentalist—Tim Nickless was all of these, on top of being a loving husband and father to three young boys.

Ty and the gang roll into Holt, Michigan, where Tim, a true Renaissance man with a lust for life, passed away in early 2008 after a painful seven-year battle with Hepatitis C.

Ty heads to Minnesota for a family who has transformed the lives of people in education through different creative methods. Their lives will change once Ty and the team have finished working on their home. This weeks hero is Susan DeVries. She suffers from Ventricular Tachycardia, and the arrhythmia is becoming more life threatening and could lead to her sudden death. Despite this Susan still happily works as a music teacher, band director and 1st grade reading specialist. Plus she shares the school bus driving job with her husband, Dirk, who lost one of his arms in a farming accident. When her school had no money for musical instruments Susan made them some out of anything she could find to recycle, including flutes made from plastic pipes.

Ty and the designers rebuild a home that has been destroyed by heavy water damage.

Ty and the gang travel to Pekin, Illinois to provide a better home for a family whose youngest son is afflicted with brittle bones disease.

The team heads down to Quincy Township, PA where the family have helped many disabled children over the years. Their poor lifestyles mean they only have one heat source in the house, and their land is used as a waste dump

In a special two hour episode, the team head to Fort Riley, Kansas. They are there to help out Patrick's family whose home was destroyed by a tornado. With the help of hundreds of volunteers, Ty and the designers rebuild their home

The Girards have always been a helpful family, volunteering whenever possible and both the father and their eldest son where working towards helping the community. Unfortunately they both drowned and their house were burned down in a fire so Ty and the team head down to help out the rest of the family.

Ty and the gang go to Keller, Texas to help a family dedicated to aiding families with premature babies to reubuild the home and business they lost in a flood.

Ty takes the team to California to help Mary Ann Riojas who was born with a disability. She now lives with four children in a home that cannot cope with her needs and is falling apart.

Ty and the gang go to El Paso, Texas, to help a family who sacrificed finishing their own home project to improve the lives of others.

Ty and the gang go to Tucson, Arizona to rebuild the dangerous home of a 14-year-old girl suffering from a life threatening blood disease.

The team improves the home of a family operating an animal sanctuary in Pennsylvania; the family takes a vacation to Costa Rica while the team does its work; actor Justin Chambers stops by to welcome the family to its new home.

Ty takes his team down to Tallahassee, Florida where they are going to help George who is battling with brain cancer. His family have looked after many children with special needs and now he wants to provide his own family with a stable home.

After losing two children in 14 years, the Jordan family are now raising their grand children. Their lives are about to be turned around by Ty and the team who are ready to give them a brand new home.

The team heads to Las Vegas in order to rebuild a home that is dangerous for two young girls that have CIDD.

In the season finale, the team visit the home of Bernard McFarland which they find has become run down over time. After helping the kids of the area get a good education, he now needs help himself as his home has become unsafe for his three kids.