Based on Clive Cussler's best-selling novels starring action hero Dirk Pitt, Sahara sets the daring adventurer on a mission to save the world from destruction. While investigating a deadly water-borne epidemic along the Nile, Pitt (Matthew McConaughey) uncovers a secret dating back to Lincoln's assassination and battles an evil industrialist bent on killing every living thing in the world's oceans. Also stars Steve Zahn and Penelope Cruz.