This short is on a DVD box set, "Walt Disney Treasures: Mickey Mouse in Black and White: Volume #2," and I bought it when I was on vacation with my family. This short became one of my favorites out of the collection; I thought it was "bouncy-touncy" fun.
It started when Mickey got a parcel crate from an Australian named Leo Buring. To their surprise, the crate started moving, and a boxing kangaroo and her joey jumped out. I knew it was a female because the males don't have pouches. Pluto was irritated that the kangaroo and her child had invaded his area. I observed that the artists designed the kangaroo and joey in Mickey's style, and the joey's voice is reminiscent of Roadrunner from Warner Bros.' cartoons.
I enjoy watching Pluto chase the joey on the water pump, getting wet in the process. Then Pluto goes for a rough ride in a wheelbarrow and lands in a garbage dump. With his back paws stuck on springs, Pluto bounces up and down to the little kangaroo's delight. They hop for a little bit before Pluto hops a little too high and smashes head-first into the roof of a greenhouse. Pluto is unaware that the little kangaroo has become attached to him by resting in a corset "pouch" that he jumped into from a clothesline near the greenhouse. A bit of risqué business, huh? Overall, this is a marvelous cartoon, and now I have gone "Kanga-crazy!"