Hunter is ecstatic when she talks Rob into hiring her reformed-alcoholic mother Helena for a bit part. But an ambitious Helena isn't satisfied with her one-line character and sets her sights on a steamier role, leaving a dismayed Hunter to rethink her support. Elsewhere, Courtney and Johnny prepare to play a charity volleyball match with cast members of "Popular."

Hunter and Courtney vie for the attention of Hunter's ex-boyfriend Jonah, who's on the set to direct an episode, while Dave and Marcy realize they have something in common--their underwear.

A magazine publishes nude photos of Courtney without her permission, causing a big hubbub among the cast and crew. Meanwhile, Dave prepares to tell Marcy how he really feels about her.

Jason Priestley sponsors the latest member of Sex Addicts Anonymous--Quentin. Marcy frets over a phone-in campaign to kill her character.