Contagion

When the President of the United States (Bruce Boxleitner) is struck by a poisoned dart, a shadowy terrorist claims that the Chief Executive has been infected with a lethal virus, for which the terrorist has the only antidote. As frenzied negotations proceed between the Government and the assailant, virologist Dr. Diane Landis (Megan Gallagher) races against time to save the President's life and avoid a worldwide crisis, with or without the aid of the typically uncooperative Secret Service... (allmovie.com)