For their next challenge, the designers must collaborate with local accessory designers to create a stylish runway look and a brand new accessory. They have $400 for fabric at Mood, an additional $250 for notions at Hai Trim & Feathers, and two days to complete the challenge.

Working in pairs, the designers must create innovative avant garde looks highlighting one of the most trendy and complicated of materials — faux fur. They have $500 and two days to complete the challenge.

For this challenge, each designer is paired with a star from Bravo's "Real Housewives" shows in order to create the ultimate reunion show look for them. They have $700 and two days to complete their garments.

For this assignment, the designers are each teamed with an up-and-coming hairstylist for a head-to-toe fashion collaboration. They must create a runway look inspired by their stylist's hair design. They have $500 and one day to complete the challenge.

Each of the remaining designers is given five months and $10,000 to design a 10-piece collection for Fashion Week. In the interim, each gets a special visit in their hometown from Christian Siriano. Back in New York, they present their work at Fashion Week and a winner is crowned.