Bobby Mittelstaedt

Ward gets himself in trouble with the boys when he promises Wally that he will go on a fishing trip with him, but also promises Beaver that he will go to the father-son school picnic which takes place on the same day.

Beaver scores one of the highest grades on an intelligence test his class takes. His parents consider sending him away to a private boarding school until Charles Fredericks confesses that he switched papers in order to fit in because he was new at school.

Beaver is suspended from riding the bus because he gets into a fist fight. He writes a letter of apology to the bus driver and is eventually allowed back on the bus.

After a penny fortune predicts 'Today is your lucky day', Beaver ends up with a scheduled fight with fifth grade bully, Sonny Courtwright. Beaver is filled with confidence due to his fortune, until Wally points out that you can't count on luck to win a fight. While Ward and June ask Wally to try and prevent the fight, Beaver comes back stating that Sonny never showed.

After realizing that his father was in the war with President Eisenhower, Beaver brags about his father to all of his classmates the next day. He says he will bring in some mementos to show the kids who don't believe him, but when he goes to look for something, he learns that his father was an engineer who built bases and didn't fight during the war. Beaver still thinks his dad is a hero anyway.

Ward makes an offer on a house in Madison and Beaver automatically assumes they are moving, so he says good-bye to his classmates and teacher. When Beaver finds out that they are in fact staying, he doesn't quite know how to tell his friends.