Fashion and commerce collide as the All Stars work with design house Milly to create ready-to-wear looks to be sold for charity and the designers face a shocking twist on the runway. Guest judges are Kristin Chenoweth, Nick Cannon and Milly Designer Michelle Smith.
In the Season Finale, designers present collections inspired by their own heritage at a VIP runway show at the world headquarters of the United Nations. Project Runway's Zac Posen and guest judge Gayle King help to crown the winner.
Alyssa Milano reunites the 11 All Star designers to reflect upon the season and goes behind the scenes with exclusives, surprises and some unfinished business! The special will also include a surprise appearance by Debbie Harry, unseen footage and a Simpsons exclusive.