An expert in unidentified flying objects unites her forces with an unlucky taxi driver from Las Vegas to protect two teenager brothers who are endowed with paranormal powers. They have to protect them from the attempts of a diabolical organization to capture and use them in order to implement its evil plans. The orphaned teenagers named Sara (AnnaSophia Robb) and Seth (Alexander Ludwig), while being in search of their origins, become the main target of the evil Burke (Ciarán Hinds), who wants to exploit in his personal interest their supernatural capacities including telekinesis and does everything possible to catch the children.