Ep 9. The Clubhouse

Beaver and Wally get the idea to build a clubhouse in their backyard, and enlist the help of their friends Whitey and Gilbert. They scrounge for materials and work together to construct their secret hideout, complete with a secret password for entry. However, their excitement is short-lived when they discover that their younger brother, Billy, has found the clubhouse and barged in without permission.

The boys decide to let Billy into the clubhouse, but soon regret their decision when he begins to wreak havoc. Billy spills paint all over the floor and walls, breaks their model airplane, and even lets their dog, Dizzy, loose inside. The boys are fed up with Billy's inability to follow the rules and decide to ban him from the clubhouse.

Meanwhile, Ward and June discover the boys' construction project and are impressed by their ingenuity and cooperation. However, their approval turns to concern when they overhear Beaver and Wally discussing their plan to exclude Billy from the clubhouse. They empathize with Billy's feelings and encourage the boys to find a solution that includes everyone.

The boys realize their mistake and apologize to Billy, inviting him back into the clubhouse and showing him how to follow the rules. They spend the rest of the day playing together harmoniously, and even let Billy choose the secret password for their new, inclusive club.

The episode ultimately emphasizes the importance of inclusivity, communication, and working together to solve problems.