Contrasting the landscapes and cultures of the Eastern and Western United States, this pair of domestic travelogues takes viewers on a captivating journey. Eastern stops include metropolitan Boston, Chicago, New York City, Washington, D.C., and a pre-Hurricane Katrina New Orleans. Among the Western stops are Salt Lake City, the Grand Canyon and the guilty pleasure of Las Vegas, plus historical spots from the days of the Wild West.
After their father (Tim Robbins) is called into work, two young boys, Walter (Josh Hutcherson) and Danny (Jonah Bobo), are left in the care of their teenage sister, Lisa (Kristen Stewart), and told they must stay inside.
When the renegade crew of Serenity agrees to hide a fugitive on their ship, they find themselves in an action-packed battle between the relentless military might of a totalitarian regime who will destroy anything - or anyone - to get the girl back and the bloodthirsty creatures who roam the uncharted areas of space.