Plot Summary:Mickey, Donald, and Goofy live in a land where everything is dried up and dead. The only food they have is one loaf of bread, even Donald's plans of killing their cow fail. So Mickey decides to trade in the cow and gets some magic beans. Donald angrily throws the beans into a hole in the floor and during the night, a giant beanstalk sprouts, carrying the house upward. The next morning, Mickey, Donald, and Goofy find themselves in a land with a huge castle. They enter the castle and find enormous foods. What they don't know is that Willie the Giant owns the castle and he does not like what he finds. So he captures Donald and Goofy and locks them in a box with the golden harp he had stolen earlier, which makes Happy Valley, the three friends' home land, dry up. Mickey steals the keys, rescues his friends and the singing harp, and they all escape before Willie catches them.
很久很久一切,在地球的某个角落有个名叫快乐谷的所在。这里山清水秀、风调雨顺、饮食无忧,百姓们安居乐业。护佑着这里的,正是山顶上美丽城堡中那把会唱歌的琴。某天,邪恶的巨人威利闯进快乐谷,夺走了唱歌的琴。从此阴霾笼罩山谷,各种灾难相继降临,曾经的快乐谷变成了充满悲伤的贫瘠之地。山谷中居住着3个农民:米老鼠、唐老鸭和高菲,他们已经饿到了极限。为了换得食物,米老鼠忍痛卖掉心爱的小牛,结果却换来号称具有神奇魔法的3颗魔豆。 夜晚,掉落进泥土中的魔豆生根发芽,粗壮的豆茎直冲云霄,带着米老鼠他们来到了巨人威利的宫殿……