剧情：
ThedreamofsendinghumanstoMarsiscloserthaneverbefore.Infact,manyscientiststhinkthatthefirstpersontosetfootontheRedPlanetisalivetoday.Butwhereshouldthefirstexplorersvisitwhentheygettherebbb Horizonhasgatheredtheworld'sleadingexpertsonMarsandaskedthem:wherewouldtheygo,iftheygotthechance-andwhatwouldtheyneedtosurvive? Usingincrediblerealimagesanddata,HorizonbringstheseMartianlandmarkstolife,fromvastplainstotoweringvolcanoesandfromdeepvalleystohiddenundergroundcaverns.Theprogrammewillalsoshowviewerswheretoland,wheretolive…andevenwheretohuntfortracesofextra-terrestriallife. Thisistheultimatetraveller'sguidetoMars.
