Matt Kaminsky

Phoebe believes that the cat that jumped into her guitar case in Central Perk contains the spirit of her adoptive mom. Joey's attempt to sell his entertainment center proves hazardous. (Original Broadcast: Season 4, Episode 2)

When the bodies of two assassins are delivered to NCIS from overseas, Tony and Ziva assume their identities undercover and engage in a sexy rendezvous at a luxury hotel in order to find their target.

When J.D. talks to students about what life in medicine is like, he branches off into a discussion of his best moments as a doctor and challenges his colleagues to do the same.

When Dave's amateur band loses its lead singer just before a gig, Tina offers to fill in, however her high standards are out of tune with the rest of the group. Also, Marty quickly regrets letting his needy boss, Jerry (guest star Samm Levine), crash at his new place.

While Enterprise is surveying a black hole in a trinary star system, the stellar phenomenon causes strange effects on the crew.

Non-corporeal aliens possess the bodies of the Enterprise crew.