In a world where meat means survival, Frank cant seem to catch a breakor an animal. He just cant bring himself to kill a fellow creature. Just looking into a baby mammoths big eyes is enough to turn him vegetarian. But while out looking for fruit to eat, he runs afoul of an old nemesis: the wily Leonard, who once stole his Swiss Army knife (and is still puzzling over it). Will Franks new mammoth friend save him from Leonards clutches? Will Leonard save them all from the common cold? And just why is their forbidden fruit forbidden?