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.

After a short introduction, one of Neptune's mermaids is captured by a pirate ship, and their anchor chain entangles King Neptune; the various sea creatures launch a full-on assault on the pirate ship, and eventually the giant King himself gets free and creates major havoc for the ship.

Mickey is first seen reading Gulliver's Travels while the mice orphan children are pretending to be sailors. After ruining their game Mickey tries to make it up to them by retelling the Liliput sequences of Gulliver's Travels pretending it was a real event that happened to him by portraying the role of Gulliver. The story ends with Mickey saving the town from a giant spider (Pete). However after telling the story, one of the children dangles a fake spider attached to a fishing rod which scares Mickey out of his witts.

While streetworker Mickey romances Minnie, Mickey's nephews Morty and Ferdie take control of his steamroller and it's full speed ahead on a very destructive ride.

Mickey performs all his chores while whistling or singing. The big excitement is when Fanny the hen, who hasn't laid an egg in some time, lays a super-giant egg.

Mickey and Minnie are touring Arabia when she catches the eye of sheik Pete.

Pirate Pete has kidnapped Mickey and Minnie and has them tied up. As Pete prepares to have his way with Minnie, Mickey escapes and gets a swordfish off the wall; a swordfight with Pete ensues. Mickey gets out of the cabin and on deck; he hoists Minnie up onto the mast. Pete summons his crew, and Mickey fights them off with a cannon, shooting pots and pans, a stove, and ultimately a harpoon before winning Minnie and the ship back for good.

Mickey is set to ride Thunderbolt in the big race; his owner, the Colonel, has bet everything. But the stable-hands goof off and incapacitate the horse. In desperation, Mickey rents a horse costume and puts the stable-hands inside. They manage to eventually clear the hurdles, but get hung up on one near a beehive; the bees propel them to victory.

Mickey, Minnie, Horace Horsecollar, and Clarabelle Cow go on a musical wagon ride until Peg-Leg Pete tries to run them off the road.

The gang is sitting around their campsite when a mosquito spoils their fun. And then he gets hundreds of his friends and they really cause trouble. Horace squirts some with molasses, which helps a bit. Everyone retreats to the tent, where they still get stung but can fight back a bit, eventually trapping all the mosquitoes in a pair of bloomers and sending them on their way.