Ian Patrick Williams

Mitch and Cam's best gal pal, Sal, makes one of her notorious surprise drop-ins, but this time with big news - she's getting married... tomorrow! Cam and Mitch are the best men, but they can't help but question whether this party girl can really settle down, and they consider an intervention. Meanwhile, Gloria has trust issues with their new nanny, Claire has a rare bonding moment with Haley, and Phil helps Luke with a girl he likes.

Niles brings Daphne's father to Seattle in hopes of convincing him to reunite with her mother.

As the BAU searches for a vigilante killer in Cleveland, Rossi seeks out his former Marine sergeant who is missing. Also, the secret JJ has been keeping from the team may be catching up with her.

When Will takes a photograph of JAY LENO and publishes it in a tabloid, Jay is not amused and sues Will for $10 million. Hilary looks for a house to buy.

The Voyager crew makes first contact with a holodeck program.