DESMOND EXPERIENCES SOME STRANGE SIDE EFFECTS ON THE WAY TO THE FREIGHTER, ON ABC'S "LOST"

"The Constant" � Sayid and Desmond hit a bit of turbulence on the way to the freighter, which causes Desmond to experience some unexpected side effects, on "Lost," THURSDAY, FEBRUARY 28 (9:00-10:02 p.m., ET) on the ABC Television Network.

"Lost" stars Naveen Andrews as Sayid, Henry Ian Cusick as Desmond, Emilie de Ravin as Claire, Michael Emerson as Ben, Matthew Fox as Jack, Jorge Garcia as Hurley, Josh Holloway as Sawyer, Daniel Dae Kim as Jin, Yunjin Kim as Sun, Evangeline Lilly as Kate, Elizabeth Mitchell as Juliet, Terry O'Quinn as Locke and Harold Perrineau as Michael.

Guest starring are Jeremy Davies as Daniel Faraday, Rebecca Mader as Charlotte, Jeff Fahey as Frank Lapidus, Alan Dale as Charles Widmore, Sonya Walger as Penelope "Penny" Widmore, Graham McTavish as sergeant, Darren Keefe as Billy, Edward Conery as auctioneer, Marc Vann as doctor, Fisher Stevens as George Minkowski, Kevin Durand as Keamy and Anthony Azizi as Omar.

"The Constant" was written by Carlton Cuse & Damon Lindelof and directed by Jack Bender.

"Lost" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound and Spanish audio via SAP. This program carries a TV-PG,L,V parental guideline.

This episode of "Lost" will be available on ABC.com the day after airing on the network for users to watch online.