Chris Powell had his hands full with this week's lucky participant in 'Extreme Makeover: Weight Loss Edition' (Mon., 10PM ET on ABC). More than anyone we've seen before, Wally is deep into an addiction to food, and it proved more than Powell could handle.

During the first three months, Wally was doing fine and even hit his three-month goal. But that's because Powell was living with him, motivating him to work out and, more importantly, keeping him out of those drive-thrus.

Wally's level of addiction to food is as bad as any drug addict or alcoholic. He lies to friends and loved ones, sneaks money to buy food and has even spiraled into despair. Powell tried to do what he could to help Wally find his inner drive and will to succeed and change, but it was just setback after setback.

At the six-month mark, Powell had promised Wally a 100-mile bike ride, which was something Wally had been wanting to do for a long time. Because Wally didn't meet his weight-loss goal, though, he had to take on the trek at a much larger size than Powell had intended.

As a result of this and the high temperatures, Wally didn't even finish half of the ride before heat exhaustion ended that particular journey. And by the end of the year, when we're usually celebrating these people's victories and marveling at their physical transformation, Wally's weight was on the way back up and Powell was helping him check into a facility to help him battle his addiction.

It's a sobering reminder of just how serious food addiction can be, and how hard it is for some people to make the changes in their lives needed to be healthier and lose weight. Wally couldn't do it even with this show helping. He was only able to succeed with 24/7 supervision in those first three months.

It's going to be a long journey to success for Wally, but we hope he can achieve it. We have no idea if 'Extreme Makeover: Weight Loss Edition' will be back for another season or not, but we hope Powell can find a way to share Wally's journey with us. We just know he's going to be keeping in touch with him.