Chief Kallaarac is the harried chief of the wookie village in Myyydril Caverns of Kkowir Forest on the planet Kashyyyk. His people are sick and dying from constant attacks by the terrible Urnsor'is of the Deep Depths beyond his village, and many of the bravest wookies of the village (including Kallaarac himself) have lost limbs in the growing conflict with the monsters. His people desperately need help if they are to survive in the cave that they call home....