Viewers will witness how the design team made more than one dream come true for eight-year old Kassandra Okvath from Gilbert, Arizona, who is recovering from cancer. She is an adorable little girl who makes an impression on everyone she meets. She and her family were thrilled when they learned that the floor of the children's hospital at the University Medical Center in Tucson, Arizona, where Kassandra has been receiving treatment, would receive a complete renovation in just seven days. What Kassandra and her family didn't know was that, while one design team was making over the hospital floor, another team was replacing the Okvath house - 90 miles away in Gilbert - with a brand new 5300-sq. ft. home at the same time, completing it in the identical, exciting seven-day time frame. The process of their particular home makeover is the subject of this episode of ""Extreme Makeover: Home Edition: How'd They Do That?"" As with all of the intense remodeling projects the show undertakes, there i