ドナルドのアンデス旅行：ドナルドダックがチチカカ湖周辺を旅し、葦の船バルサ、気取り屋のラマといったインカの末裔達の風俗に触れる。

小さな郵便飛行機ペドロ：郵便飛行機の子供ペドロが、初めてアンデスを越えて郵便を運ぼうとするが、調子に乗ったペドロは魔の山アコンカグアに近づいてしまう。

グーフィーのガウチョ：テキサス州のカウボーイ、グーフィーが南米に飛ばされ、南米版カウボーイであるガウチョに変身する。

ブラジルの水彩画：アニメの筆が次々にブラジルの自然や風俗を描いていき、そのスケッチからホセ・キャリオカが誕生、ドナルドをサンバの夕べへ誘う。

Story of South American mail pilots, and the dangers they face flying at night.

Mickey the mail pilot is entrusted with a chest of money. He battles rain and snow, but his biggest battle is against Pete, who has a plane equipped with a machine gun and a harpoon cannon. Mickey's plane quickly loses its wings and propeller to Pete's armaments, but he improvises a helicopter blade with a clothes-drying rack, then, when that gives way, a replacement prop from a windmill.

Kincade and Blake cause a mail plane carrying a payroll to make a forced landing in the desert. When they try to get the money, prospectors Ted and Si drive them away. With the pilot shot, Ted takes over as pilot figuring another attempt will be made and this time the Sheriff will be there.