Beyond the Mississippi River : what was the Louisiana Purchase? -- Put to the test : what gifts did Lewis and Clark give to the Native Americans they met? -- Deep into the wilderness : what people did Lewis and Clark see in Lousiana? -- The big truth! : animals of the expedition : what kinds of animals did Lewis and Clark write about in their journals? -- Across the Rockies to the ocean : how did the explorers survive the most dangerous part of their journey? -- Journey's end : what happened after Lewis and Clark returned from their trip? -- True statistics.