终极瞄准（2007）

Top secret government experiments with time travel have been shut down and dec lared as too dangerous to continue. The lead scientist has disappeared with th e technology and a government manhunt is underway. When his name appears on an airline manifest after the flight has departed, the government orders the pla ne to turn back. But the plane drops from the radar, disappearing into thin ai r! As special agents try to locate the plane, scientists must deal with the re percussions from the time ripples that threaten to destroy the Earth.