The designers can finally design something actually wearable. For this challenge, the designers must create a party dress that could appeal to Banana Republic's customers. The winner, instead of being granted immunity, will have their dress marketed and sold at select Banana Republic stores. They have to pick their fabrics at the studios and have two days to complete their designs.

The designers show their prospective designs to rock singer Sarah Hudson, who picks the three whose designs she liked best: Jay, Kevin, and Austin. Those three are the team leaders and they have to pick two others to be on their team and, as a group, they will work on the group leader's design. Each team had $150 and one day to complete their design.

As one group, the designers will create a collection, one carrying the theme "the year 2055." One designer is to lead, taking responsibility for the overall vision, while each designer will sketch and create an outfit of his or her own for the line. Each designer has a budget of $50 and one day to complete their look for the collection.

A special reunion episode, the 12 designers all reunite to talk about what happened behind the scenes on Project Runway. When people are confronted and questions are answered, the fabric starts flying.

Tim Gunn visits the final three designers at their homes to show the progress of their collections. Each designer must create a twelve piece collection for a showing at New York Olympus Fashion Week. After months at home to prepare, the final moment has come to show the world their collections.

After auditions in New York, Houston, Miami, and Los Angeles, the 16 contestants being considered for this season's cast were given six yards of plain white muslin, $20, and one week to create an outfit that best represents who they are as a fashion designer. After arriving, the 16 contestants find that only 14 positions were available in the Parsons workroom and thus two will be eliminated at the runway judging.

Heidi throws a roof-top party for the designers. At the party, she announces their next challenge: each must create an outfit using nothing besides the clothes he or she has worn to the party. They have one day to complete their designs.

The contestants are asked to design for a global star… Barbie. The winning designer's outfit will be duplicated for the My Scene Barbie collection. The designers have a budget of $150 and two days to complete their designs.

The remaining designers must design a lingerie line consisting of three looks. The twist is they have to do it as teams, each with a lead designer and two assistants. The designers have a budget of $200 and one day to complete their collections.

The remaining designers must each create a dress for prominent socialite Nicky Hilton. The designers have a budget of $150 and two days to complete the designs.

The designers, in five teams of two, must create a day-to-evening ensemble for Banana Republic, as well as a compelling and successful window display advertising the clothing. Each team has to finish their garment in one day.

The designers have to get sporty to create a garment for 2006 Olympic silver medalist Sasha Cohen. The designers have a budget of $150 and two days to complete the design.

The contestants have to draw inspiration from their surroundings while outside in New York. The designers have a budget of $100 and one day to complete the outfit.

Designers must create a look using only natural materials purchased in the flower district. The designers have a budget of $100 and one day to create the garment.

The designers must design a makeover look for another designer, who will then model the new look on the runway. The designers have a budget of $200 and two days to complete the outfit.

The contestants face off in the final competition before the Olympus Fashion Week finale. They must design an evening gown that will be worn by supermodel Iman. The designers have a budget of $300 and two days to complete the outfit.

While in Paris, the designers' next challenge is to make a gown employing haute couture techniques. They have 300€ and two days to complete the challenge.

Eliminated designers who have won at least one previous challenge are given a chance to get back into the competition. The designers are asked to create a cocktail dress using only black and white fabrics. They have $100 and one day to complete their design, with the stipulation that they must use all of their purchased fabric.

The designers are asked to create an outfit that expresses "their specific point of view." They must also stage a photo-shoot with their models and find three words that best express who they are as designers. They have $250 and two days to complete the challenge.

The cast of Season 3 reunites to recap all the gripes, drama and other shenanigans which were only seen by those behind the scenes. One of the designers wins the first ever "Fan Favorite" award, along with a check for $10,000.

Each of the remaining designers is given two months and $8000 to design a 12-piece collection for Olympus Fashion Week. In the interim, each gets a special visit in their hometown from Tim Gunn.

In the conclusion of the finale, the remaining contestants ready their collections for the runway. Then they present their lines to industry insiders at Olympus Fashion Week.

In the fourth-season opener, the new crop of designers invades New York City. It's pins-and-needles time when the first challenge finds the newbies racing to design whatever they want. They are given 10 minutes to grab from $50,000 worth of fabric in three tents set up in Bryant Park to create a garment that best reflects who they are as a designer.

The designers are asked to create a two-piece garment for Sarah Jessica Parker's "Bitten" line. After pitching their designs, Parker chooses seven who will be team leaders, working in teams of two to create the design. They have $15 and one day to complete their look.

The designers are asked to create a menswear outfit for Tiki Barber to wear on The Today Show. They have $150 and two days to complete their looks.

Each designer must pick one of 12 outdated fashion trends. Then, working in teams of three, they must incorporate all three trends into a cohesive mini-collection of three looks. They have $225 and two days to complete their outfits.

Each designer must create an outfit for a woman who has recently lost weight. The new outfit must incorporate aspects of the now-thin woman's personality, as well as the designer's own style. They are given one of the woman's outfits from before her weight loss as raw material for the new design, $10 to use for additional materials, and one day to complete the challenge.

Designers are asked to create a garment using any materials available at the Hershey's store in Times Square. They have only five minutes to collect materials and one day to complete the outfit.

The designers are challenged to create prom dresses for a group of 16 and 17 year old girls. They have $250 and two days to finish the garments.

After designers are randomly paired the teams are asked to create an avant-garde outfit based on inspiration from their models' hairstyles. They have $300 and two days to create this look. Later, each team is asked to create a ready-to-wear outfit which embodies the essence of their avant-garde look. For the second piece, the designers have an additional $50.

The designers are tasked with creating an iconic look using deconstructed denim while also showing off the Levi's 501 legacy. They are given three minutes to collect provided denim (jeans, jackets, and cotton fabric) and one day to complete their designs.

The designers must design an outfit for a WWE Diva that matches her attitude and can be worn in the wrestling ring. They have $100 and two days to complete the looks.