传说中黑暗的主宰魔鬼的统治者，无时无刻在觊觎著人类的世界。格林和泰里是两个活泼的小孩，一天他们在家中的后院挖土，无意间挖到了一个直通地心的无底深洞，他们的恶梦便从此开始，晚上无数的精灵及鬼怪，纷纷从地洞中爬出……

Although their own father, bank Charles, refuses them a loan to start a novelty American toys company to rival the established German import, the brothers A.C. and Frank succeed, especially with constructive and educatio…