In Roy Rogers' Down Dakota Way, the deadly hoof-and-mouth disease has struck the herd owned by evil rancher H. T. McKenzie (Roy Barcroft). To avoid an expensive quarantine on his stock, McKenzie plans to murder the local veterinarian (Emmet Vogan) before the latter can report his findings to the government. Rogers manages to straighten out the situation by appealing to the sensibilities of the aunt (Elizabeth Risdon) of McKenzie's hotheaded hired assassin (Byron Barr). The film also bears several musical numbers from Roy, Dale Evans, and Foy Willing and the Riders of the Purple Sage.

Gridley is mining silver from an old Mexican mine and bringing it into the USA thru a passage into his worthless mine. Border guard Rogers suspects Gridley and finally finds the secret entrance to the Mexican mine. He sends Lee Madison for help only to have her captured by Gridley. Trigger brings help that takes care of Gridley's men and now Roy has to rescue Madison.

Peter Potter Jr. returns to claim his father's gold, which is nowhere to be found.

本片是迪士尼于1948年推出的第十部动画长片，也是该公司制作的第五部短篇合集，它分别由冬日回忆（Once Upon a Wintertime）、狂乱的飞行（Bumble Boogie）、强尼苹果籽（Johnny Appleseed）、拖船小嘟嘟（Little Toot）、树木之颂（Trees）、忘情森巴舞（Blame it on the Samba）和佩柯斯`比尔（Pecos Bill）等七部音乐短片组成。音乐风格涵盖古典、流行、桑巴、爵士，应有尽有，剧情上既有无拘无束的奇思妙想，也有根据美国民间人物改编的故事。许多当时著名的歌手、演员、作曲家、动画人加盟制作团队，打造出丝毫不亚于幻想曲的经典动画作品。不仅是迪士尼的粉丝，任何一个动画迷都不可错过的杰出之作！