Wanting to be a bigger help to Oliver, Lisa decides to learn carpentry. She buys overalls and begins to study the craft from the inept Monroe brothers. Lisa's talents result in destruction in Monroes' workshop and earns Oliver a punch in the nose.

It's "Old Mail Day" and Sam Drucker hands out letters that have gotten misplaced in his post office. Having learned nothing from his previous letter-writing fiascos, an upset Oliver complains to the Postmaster General for delivery service. The locals soon turn on Oliver because Drucker's General Store is never open; he's always on his bicycle delivering mail.