Desc: In Their Footsteps: Lewis and Clark: Directed by Bob Weis. 20 modern Americans on a grueling and spectacular 10 day horseback trek over the Bitterroot Mountains of Idaho. The result is a stunning visual experience back into the American landscape as the Corps of Discovery first saw it. For history buffs, this is an exciting retelling of America's great adventure. For nature lovers, it is a visit to some of America's most fragile and beautiful sites.