Tim Gunn reveals the most explosive moments from the past 14 seasons of "Project Runway".

The Season 14 designers and Tim come together to take care of unfinished business and settle some scores. And on this reunion, even Tim Gunn has an issue that he wants settled!

After a brutal critique with the judges, the finalists rush to retool their collections for New York Fashion Week. Superstar Carrie Underwood deliberates with the judges on who will be crowned the winner of Project Runway Season 14.

The designers head home to work on their collections and await a visit from Tim; another twist is revealed when the designers return to New York.

The designers are heading home to work on their collections and prepare for a home visit from Tim. Once back in New York they are met with another twist.

In their final challenge before Fashion Week, the designers travel to Los Angeles to create red-carpet looks; one designer takes a huge risk.

In their final challenge before Fashion Week, the designers travel to the glamour capital of the world, Los Angeles, to create red carpet looks. One designer takes a huge risk with everything at stake.

The designers use 3-D printing technology to create avant garde looks in a fashion forward challenge.

The future is now as the designers use 3D printing technology to create avant garde fashion! It's the most fashion forward challenge yet. Pop icon, Mel B., guest judges.

The designers must makeover real women from the ``Project Runway'' crew; Tim reaches his breaking point with one designer.

The designers must makeover real women... from our own Project Runway crew! Tim reaches his breaking point with one designer in the most explosive episode yet! UnREAL's Shiri Appleby and Constance Zimmer guest judge.

The designers must create ready-to-wear looks to be reproduced and sold online; a disagreement between the judges leads to the most contentious runway yet.

The designers must create ready-to-wear looks to be reproduced and sold online. Disagreement between the judges leads to the most contentious runway yet! Singer/songwriter Ciara guest judges.

The designers must create fashionable looks based on the musical, "Finding Neverland" one designer upstages the entire competition.

The magic and glamour of Broadway serve as inspiration for the designers' new challenge as they create fashionable looks based on the musical, Finding Neverland. One designer upstages the entire competition. Supermodel Coco Rocha guest judges.

In their second unconventional materials challenge, the designers go dumpster diving for recycled electronics in order to merge the worlds of fashion and technology. Actress Paula Patton and Editor-in-Chief of Marie Claire Magazine, Anne Fulenwider, guest judge.

In an episode full of surprises, Heidi challenges the designers to create lingerie for her line. The exhausted designers get a rude awakening on the runway. Actress Bella Thorne serves as a guest judge.

Tensions arise when the designers split into two teams and battle for their fabrics in a fierce paintball competition. After capturing their fabrics for a six-piece collection, the teams receive a big surprise once the paint dries on the battlefield! Project Runway Junior's Kelly Osbourne and Lisa Perry guest judge.

The designers finally get to go to Mood and they are thrilled! They must put a modern and unique twist on a classic design. Mad Men's Kiernan Shipka joins as a guest judge.

In the first team challenge of the season, the designers are paired up and treated to a day on a Celebrity Cruise ship. For some of the duos, the friendly seas are left behind and they hit some rocky water in the workroom. Tracee Ellis Ross guest judges.

In the first unconventional materials challenge of the season the designers use greeting cards as their materials. Once in hand, each designer must decide how to read the cards in order to win the challenge. Ashley Tisdale joins the judges.

Sixteen talented, spunky and full of life designers arrive at Madison Square Garden to kick off a new season of Project Runway. They are greeted by Heidi and Tim who have them do a mad dash around the venue for fabric. Supermodel and Project Runway Junior host Hannah Davis is the guest judge.

Tim Gunn provides a look into the lives and designs of the upcoming cast.