Jack's mother throws Jack's magic beans outside under Sylvester Cat's sleeping box, and the cat is whisked to the world above, where he finds a huge Tweety Bird in the castle of the legendary Giant.

Sylvester Cat chases Tweety Bird while Tweety narrates. The chase takes them out of the city to the country, straight into a mine field, down a ski slope, and to the middle of a wooden bridge, where ...