A conflict arises when the gang arrives at actor John Cho's house on the same day that a porn-movie crew shows up to shoot scenes. Tony gets a look into the future when he discovers that one of the adult-movie stars is an old acting buddy.
Chris Kattan thinks Tony would be perfect for a part in his new movie, which he is also producing, and arranges an audition for him. Tony believes it goes swimmingly, but it might actually sink Kattan's behind-the-camera career before it gets started.
While Tony is remodeling the screening room in Cheryl Hines' house, his take-charge mother visits the set, where she sees an opportunity to improve her son's career by taking potshots at Lila; Cheryl agrees to take someone from the show to the Golden Globe Awards.
Things come to a boil when Tony, while building a sauna for Jamie Kennedy, learns that the comedian is dating the contractor's ex-wife. When Jamie taunts Tony about it, Tony gets his revenge by making a mess of Jamie's house.
Tony's acting career might go down the drain after a mishap on a bathroom job at Carmen Electra's house leads to the death of her beloved dog, and she threatens to inform the media. To protect co-host Lila, her agent arrives to promise Carmen a part in Peter Jackson's next film and to sign Tony in hopes of keeping him quiet.
When the crew arrives at Tom Arnold's house to work on his backyard, the star is nowhere to be found, and Tony admits to partying with him night before. Tony finally catches up with Tom in a rehab facility, where he attempts to break Tom out. During the delay, Lila discusses her future with agents who intend to make her a big star.
The home-makeover crew builds a dance studio at the house of Paula Abdul, whom Tony the host antagonizes. He also causes an accident involving a production assistant and meets his comely new sidekick, Lila, of whom he is immediately jealous.