||15546 } -->

Here's the setup for this week's episode: Alyssa Milano gathers the designers by a rooftop pool, where she tells them their challenge is to design "elegant resort wear suitable for a glamorous getaway" and a corresponding swimsuit to go underneath. Some contestants' faces fall—we later find out it's because they've never done swimwear before—but they cheer up soon enough when a quartet of male models strips down and dives right in.

Advertisement - Continue Reading Below

Later at the judging, Isaac complains about "moose knuckle" (what is "moose knuckle"?!) while Alyssa has a flashback to the '80s in a bad way. Whose look is in hot water? Find out tonight at 9 p.m. EST on Lifetime.

You should also check out:

If the 'Project Runway' All Stars Could Design the Golden Globes Red Carpet, This is What It Would Look Like

More from Marie Claire: