Captain Frank Towns (DENNIS QUAID) and his co-pilot AJ (TYRESE GIBSON) have flown their cargo plane to Mongolia with orders to cap an unsuccessful well and fly the small crew back home after the oil operation has been shut down. Company man Ian (HUGH LAURIE) is resigned to the news, but not chief roustabout Kelly (MIRANDA OTTO), who reluctantly and angrily boards the plane with the rest of the crew and the mysterious Elliott (GIOVANNI RIBISI) who's only recently arrived at the remote outpost.
While in flight over the Gobi Desert, however, Frank and AJ encounter a massive and fierce sandstorm that eventually disables their plane, sending it careening toward the sandy Earth. Hundreds of miles off course and with no radio and only thirty days of water and even less food, the group -- including Rodney (TONY CURRAN), Jeremy (KIRK JONES), Sammi (JACOB VARGAS), Liddle (SCOTT MICHAEL CAMPBELL), Rady (KEVORK MALIKYAN), Davis (JARED PADALECKI)
and others -- tries to figure out what to do.
Some want to walk to try to find help, but Rady informs them of the perils of that. Frank wants to sit tight and wait for help, but Elliott comes up with a completely different plan. Stating that he's an airplane engineer, he believes that they can take salvageable parts of the wreckage and retrofit them into a new and flyable plane that might allow them to escape from their hostile environs.
Frank initially doesn't think that's a good idea, but eventually goes along with the plan after weighing their limited options. With their life-sustaining resources dwindling, and upon learning that nearby smugglers might prove to be dangerous, the group tries to overcome those obstacles and their personal differences to build and fly the plane before it's too late.