Dailies | ‘Project Runway All Stars’ Preview: QVC's Lisa Robertson Lays Down the Law (Exclusive Video)

The final six designers find out their next big challenge in TheWrap's sneak peek

After “Bonnie & Clyde” and Marge from “The Simpsons,” “Project Runway All Stars” crossed state lines for another big TV challenge on Thursday's episode airing at 9/8c.

See video: ‘Project Runway All Stars’ Guest Client Marge Simpson Wants a Freakum Dress

Lifetime brought the designers to Pennsylvania where QVC's headquarters are located. Once they arrived, the shopping network's host Lisa Robertson greeted them with their next challenge: Dress her for QVC's annual Oscar red carpet event.

The stakes are high here, because Robertson knows exactly what she doesn't want in her red carpet look.

Also read: Lifetime Renews ‘Witches of East End’ for Season 2

The Top 6 are Irina, Korto, Elena, Seth Aaron, Viktor and Christopher. This week, alum Mondo Guerra and “Mad Men” actress Elisabeth Moss joins Robertson on the judging panel.

Which designer will have the goods?

Watch TheWrap's exclusive preview above.