Escape From Planet Alcatraz: The Crushing Crystals

Zak Nine and Erro find an electronic map device in a crashed ship. Now they hope the map can lead them to safety from the planet's robot guards. But they must first cross a giant desert filled with hidden dangers. Will the boys avoid becoming trapped forever on this mysterious plain? With a little luck and some fast thinking, perhaps the boys will finally...Escape From Planet Alcatraz!