3x18 - The Angry Beavers

When a ridiculously old tree lands on the Beavers' house, Dagget and Norbert start fighting over who gets first bite. But when they do take bites out of it, they become little kid versions of themselves! With nothing else good to eat in the house, Lil' Dag and Lil' Norb decide to go after the fallen tree's golden acorn.