Meriwether Lewis (MacMurray) and William Clark (Heston) lead an expedition to survey the territory after the Louisiana Purchase. Along the way they gain the assistance of Sacajawea, played by blue-eyed Donna Reed. Vintage Hollywood at its "best" takes a historical premise and turns it into comical love-triangle that comes full circle--in the White House, no less. Check your knowledge of history at the door, but enjoy the beautiful scenery and some unintentional giggles.