A COMPLEX WEB OF DREAMS, DESIRES AND ILLUSIONS THREATEN A CRISIS ON THE ANTARES, ON ABC'S "DEFYING GRAVITY"

"Natural Selection" -- Some rocky and intriguing developments confront the crew as they learn to adjust to life on board the Antares. They find that some past choices, combined with an unknown element in the ship's mysterious Storage Pod 4, lead to a complex web of dreams, desires and illusions that result in a life-threatening crisis, on "Defying Gravity," TUESDAY, AUGUST 11 (9:00-10:00 p.m., ET) on the ABC Television Network. (Rebroadcast: OAD: 8/2/09)

"Defying Gravity" stars Ron Livingston as Maddux Donner, Laura Harris as Zoe Barnes, Malik Yoba as Ted Shaw, Christina Cox as Jen Crane, Florentine Lahme as Nadia Schilling, Paula Garces as Paula Morales, Eyal Podell as Evram Mintz, Dylan Taylor as Steve Wassenfelder, Andrew Airlie as Mike Goss, Karen LeBlanc as Eve Shaw, Zahf Paroo as Ajay Sharma and Maxim Roy as Claire Dereux.

"Natural Selection" was directed by Peter Howitt and written by James Parriott.

"Defying Gravity" is broadcast with Spanish subtitles via secondary closed captioning. This program carries a TV-14,S parental guideline.

For more information on "Defying Gravity," visit ABC.com.