The black cat demonstrates his skills by crossing the path of the rapidly approaching bulldog (to the tune of "Comin' Through the Rye"), who is then knocked out by a flowerpot that falls from the sky.

[4] The bulldog revives, and tries multiple times to attack the kitten, but every attempt is foiled in the same way: the kitten blows the whistle, the black cat crosses the bulldog's path regardless of circumstances, and the dog is pummeled by various objects falling from the sky, including a cash register, a piano, and a set of good luck horseshoes (not to mention the horse they belong to).

Eventually, the bulldog frightens the kitten into giving up the whistle, and (after a couple of false starts) he gains the upper hand on the black cat in a construction site by luring him under a large paintbrush, turning him white and rendering his bad luck powers useless.

As a result, all manner of huge objects plummet from the sky (ranging from a kitchen sink all the way to a battleship), causing the bulldog to flee in terror.

[5] The kitten faces the viewer (to the tune of "Auld Lang Syne," which is a melodic variant of "Comin' Through the Rye") with a huge grin, and then he snickers in delight when he realizes his new purpose in life as a bad luck cat.

The Film Daily (April 8, 1949): "Jet black Blackie brought bad luck to everyone who crossed his path until he met his match in large fanged bull-dog.