Defying Gravity season 1 episode 4 | watch Defying Gravity season 1 episode 4

Defying Gravity season 1 episode 4 airs on Sunday August 16th, 2009 at 10:00 pm via ABC. This week have tittle “H21K” In this episode story about The crew of the Antares face their first major crisis when the ship inexplicably begins to shut down all of its operating systems, causing the sudden failure of power, heat and gravity controls and plunging everyone aboard into chaos during the desperate search for a solution.