When a sprite named Crysta shrinks a human boy, Zak, down to her size, he vows to help the magical fairy folk stop a greedy logging company from destroying their home: the pristine rainforest known as FernGully. Zak and his new friends fight to defend FernGully from lumberjacks — and the vengeful spirit they accidentally unleash after chopping down a magic tree.

本片1988年获得奥斯卡最佳动画短片提名。 一家普通的公司，普通职员“狼先生”正和同事勤勤恳恳地俯身工作，不敢有一丝松懈，因为哪怕是伸懒腰、喝水等被虎视眈眈一直想用机器代替他们的老板发现，就会被炒掉。可是很快“狼先生”的同事全成了“机器人”。在自己也要被炒掉的一刻，“狼先生”决定夺权。