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Each designer must pick one of 12 outdated fashion trends.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.

Given 45 minutes in three galleries at the Metropolitan Museum of Art, the designers must select a piece to use as inspiration for an outfit. They have $300 and two days to complete their designs.

All the Season 4 designers reunite to dish on what really happened during the season. One designer is given $10,000 as the "Fan Favorite" contest winner.

The finalists are given five months and $8000 to design a 12-piece collection for Fashion Week. In the interim, each gets a special visit in their hometown from Tim Gunn. Upon returning to New York City, two designers will go head-to-head for the chance to show their collection.

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

Fourteen designers from across 19 seasons of "Project Runway" descend on New York once again to vie for the coveted title that has eluded them all. The iconic designers meet one another and catch up on their successes after leaving the Runway.

For their first challenge of the competition, the designers have to rewrite history by reinventing the look that either got them eliminated or gave them the lowest score in their past, and turn it into a high-fashion moment for the runways of today.

The all-stars are tasked with creating a runway look using toys for FAO Schwarz.

For Coronation Day, the designers are blindly paired together and tasked with creating couture modern gowns that exemplify royalty; Wes Gordon, the Creative Director of Carolina Herrera and gown expert, serves as a guest judge.

The designers are forced to share a single bolt of fabric to demonstrate how they can stand out from one another and prove why they're the top designer; actor, producer and Emmy Award-winning writer Lena Waithe joins as guest judge.

The designers must create chic and cohesive mini-collections inspired by the '90s; designers take to the halls of a New York City high school to showcase their styles, all while trying to impress guest judge Jennie Garth.

The jockstrap is back; the all-stars must create high-fashion looks featuring couture undergarments in this one-day challenge; fashion icons Sergio Hudson and Paulina Porizkova help separate the hot from the not.

It’s the halfway point and the designers are hitting the road to a denim explosion; in a throwback challenge, they’ll create all denim looks while competing in head-to-head battles where only one designer can be safe from elimination.

Fan favorites from the cast of "Below Deck" walk the runway in the infamous Real Client Challenge; Real Housewife Luann de Lesseps and former Below Decker Kate Chastain guest judge to help the panel decide who will sink or swim.

For the first time, the final seven designers are given the freedom to design whatever they want; on the grand outdoor runway of Franklin D. Roosevelt Four Freedoms State Park, their daring "freedom looks" will be unveiled, rain or shine.

The designers are faced with one of their hardest tasks yet: a one-day challenge that forces them to create one runway look that showcases two opposing fashion styles.

The remaining all-stars must create show-stopping red-carpet menswear looks that fully embrace the trend toward the flamboyant; Emmy Award-winning actor Colman Domingo joins the judges to help determine whose look will be in and whose will be "fowl."

The final four designers push themselves higher than ever for the Avant-Garde Challenge, inspired by the breathtaking views of Manhattan from the 91st floor of Summit One Vanderbilt; famed stylist Law Roach and Steven Kolb from the CFDA guest judge.

In a "Project Runway" first, three all-star finalists race against the clock to complete eight finale-worthy looks in just eight days; with the pressure mounting, all these finalists are shining jewels, but only one will be crowned.