Porky Pig balks at learning the Pledge of Allegiance until Uncle Sam appears to him in a dream and gives him a lesson in American history. Porky Pig balks at learning the Pledge of Allegiance until Uncle Sam appears to him in a dream and gives him a lesson in American history. Porky Pig balks at learning the Pledge of Allegiance until Uncle Sam appears to him in a dream and gives him a lesson in American history. Porky Pig balks at learning the Pledge of Allegiance until Uncle Sam appears to him in a dream and gives him a lesson in American history.