Project Runway S04E05 - What's the Skinny?

The designers are asked to re-style the outfits of 12 women, all of whom have lost a significant amount of weight. Standing on the runway in clothes that are much too big, the woman are paired off with a designer.   All is going well, until Jack reveals that he has developed a staph infection in his face, and must leave the competition. The shell-shocked designers are discombobulated further by news that previously-auf'd designer Chris March will return to the competition.   In the end, Christian's two-piece design wins the competition, while Steven goes home for "turning a wedding dress into a funeral dress."