Candace wins The Mayor for a day Essay Contest, and she csn make as many laws as she wants. Meanwhile, Phineas and Ferb build a pioneer village, without using any machines or tools.
Meanwhile, Dr. Doofenshmirtz has to play a game of golf with his brother, with Perry the Platypus as his caddy.
Then, Mayor Candace holds a ceremony to bust her brothers. When mom comes back, she sees what the boys have done, but Dr. Doof's machine rewinds the whole day, and Phineas and Ferb were never busted.
This was a great episode. There were many funny jokes, and the plot was great.