16 new designers arrive in New York with an eye to being named champion of Project Runway's 15th season. At the launch party, they are given their first challenge: use the party's spirit, aura, and vibe as inspiration (and the decorations as materials) for an outfit of their choosing. They have one day to complete their looks.

The designers must create an outfit to flatter all body types, with the winning look to be sold by JustFab.com. They have $150 and one day to complete the challenge.

The designers are asked to create a look that transitions from daylight to blacklight on the runway. They have $200 and one day to complete their garments.

The designers are challenged to create a swimsuit and an accompanying coverup. The looks are to be inspired by Heidi Klum's swim collection, and the winning outfit will be reproduced and sold as part of the collection. They are also asked to design the fabric they will use. They have $100 and one day to complete their looks.

In two teams, the designers must create a four piece mini-collection. Each team will pitch their vision to a group of investors to obtain a portion of their $3,000 investment fund. They have one day to complete the challenge.

After attending a press cocktail party at Elyx House, the designers are challenged to create a luxurious cocktail dress inspired by the venue. They have $300 and one day to complete their garments.

The designers are whisked away to Universal Studios Orlando to recharge their batteries. There, they are asked to create a streetwear look for the urban jungle, using the Skull Island: Reign Of Kong ride as inspiration. They have $200 and one day to complete the challenge.

Working in teams of three, the designers must create three-piece collections inspired by Sally Beauty colors for a SoHo pop-up shop. They have $600 per team and one day to complete the challenge.

They designers are asked to create new garments for a makeover for very special clients… their own friends and family. They have $250 and two days to complete the challenge.

Using the sights from a helicopter ride above New York City as inspiration, the designers must create an editorial look for a powerful woman to be featured in Marie Claire magazine. They have $300 and one day to complete the challenge.

The designers are tasked to create an avant-garde look using conventional fabric and unconventional metal materials. They have $150 and two days to complete the challenge.

During an inspirational trip to Austin, Texas, the designers must purchase their garment materials from a farm supply store and a music & barbeque venue. Back in New York, they must use these materials to create a high fashion look. They have $500 and two days to complete the challenge. Later, they are given an additional $200 to create a corresponding look using conventional materials.

Each of the remaining designers is given six weeks and $9000 to design a 10-piece collection for Fashion Week. In the interim, each gets a special visit in their hometown from Tim Gunn. Back in New York, they must choose three of their outfits, and create a brand logo, to show to the judges for critiques and feedback.

In the conclusion of the finale, the remaining contestants ready their collections for the runway. They are given an additional $500 to spend at Mood to finish their looks. Then they present their lines to industry insiders at Fashion Week.

The designers are split into two teams living and working separately to create mini-collections celebrating color. The competition comes to a head on the day of the runway show when they reunite hoping their team is victorious.

In their first individual challenge, the designers take on streetwear. They must use their unique personal experiences and cultures to create impactful looks containing at least three separate pieces. They have $300 and two days to complete their garments.

After the designers are sent to sleep in a haunted mansion to find inspiration for their challenge, they are tasked to create a hauntingly chic masquerade gown and mask. They have $500 and two days to complete their outfits.

Inspired by colorful blooms, the designers must create their own unique floral print from scratch and turn it into a high-end runway look. They have two days to complete the challenge.

Figure skating icons Tara Lipinski and Johnny Weir come to Project Runway needing outfits for the upcoming Winter Olympics. Working in pairs, the designers are asked to create looks that the commentators will wear in primetime, live from the Olympics. Each pair has $1200 and one day to complete the challenge.

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.

The designers are asked to create a comfy chic "Couch Couture" look that is both luxurious and cozy. They have $400 and one day to complete the challenge.

For this unconventional challenge, the designers are asked to create an elegant cocktail dress using materials from an actual cocktail bar. They have two days to complete their looks.

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.

The must create editorial looks specifically inspired by internationally renowned model Coco Rocha. They are tasked to show their artistic range by delivering not only the perfect garment, but the perfect photograph to show it off. They have $800 and two days to complete the challenge.

For the last challenge, the designers must create a look showcasing their brand's point of view in the next wave of fashion. They have $750 and two days to complete their garments.

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.